CVE-2021-25668

highpriority · track · 40EPSS 0.016 · 75 %ileDEEURUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

1.57% (75th) EPSS

CVSS 7.5 · high

Is it mine?

176 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · fstec_bdu · cisa_csaf_ot

EPSS · scored 2026-10-27

A vulnerability has been identified in SCALANCE X200-4P IRT (All versions < 5.5.1), SCALANCE X201-3P IRT (All versions < 5.5.1), SCALANCE X201-3P IRT PRO (All versions < 5.5.1), SCALANCE X202-2 IRT (All versions < 5.5.1), SCALANCE X202-2P IRT (incl. SIPLUS NET variant) (All versions < 5.5.1), SCALANCE X202-2P IRT PRO (All versions < 5.5.1), SCALANCE X204 IRT (All versions < 5.5.1), SCALANCE X204 IRT PRO (All versions < 5.5.1), SCALANCE X204-2 (incl. SIPLUS NET variant) (All versions < V5.2.5), SCALANCE X204-2FM (All versions < V5.2.5), SCALANCE X204-2LD (incl. SIPLUS NET variant) (All versions < V5.2.5), SCALANCE X204-2LD TS (All versions < V5.2.5), SCALANCE X204-2TS (All versions < V5.2.5), SCALANCE X206-1 (All versions < V5.2.5), SCALANCE X206-1LD (All versions < V5.2.5), SCALANCE X208 (incl. SIPLUS NET variant) (All versions < V5.2.5), SCALANCE X208PRO (All versions < V5.2.5), SCALANCE X212-2 (incl. SIPLUS NET variant) (All versions < V5.2.5), SCALANCE X212-2LD (All versions < V5.2.5), SCALANCE X216 (All versions < V5.2.5), SCALANCE X224 (All versions < V5.2.5), SCALANCE XF201-3P IRT (All versions < 5.5.1), SCALANCE XF202-2P IRT (All versions < 5.5.1), SCALANCE XF204 (All versions < V5.2.5), SCALANCE XF204 IRT (All versions < 5.5.1), SCALANCE XF204-2 (incl. SIPLUS NET variant) (All versions < V5.2.5), SCALANCE XF204-2BA IRT (All versions < 5.5.1), SCALANCE XF206-1 (All versions < V5.2.5), SCALANCE XF208 (All versions < V5.2.5). Incorrect processing of POST requests in the webserver may result in write out of bounds in heap. An attacker might leverage this to cause denial-of-service on the device and potentially remotely execute code.

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

A vendor fix is available.

FixedSCALANCE X200-4P IRTsiemens_psirt
Update to V5.5.1 or later version
https://support.industry.siemens.com/cs/us/en/view/109793952/
FixedSCALANCE X201-3P IRTsiemens_psirt
Update to V5.5.1 or later version
https://support.industry.siemens.com/cs/us/en/view/109793952/
FixedSCALANCE X201-3P IRT PROsiemens_psirt
Update to V5.5.1 or later version
https://support.industry.siemens.com/cs/us/en/view/109793952/
FixedSCALANCE X202-2 IRTsiemens_psirt
Update to V5.5.1 or later version
https://support.industry.siemens.com/cs/us/en/view/109793952/
FixedSCALANCE X202-2P IRT (incl. SIPLUS NET variant)siemens_psirt
Update to V5.5.1 or later version
https://support.industry.siemens.com/cs/us/en/view/109793952/
FixedSCALANCE X202-2P IRT PROsiemens_psirt
Update to V5.5.1 or later version
https://support.industry.siemens.com/cs/us/en/view/109793952/
FixedSCALANCE X204 IRTsiemens_psirt
Update to V5.5.1 or later version
https://support.industry.siemens.com/cs/us/en/view/109793952/
FixedSCALANCE X204 IRT PROsiemens_psirt
Update to V5.5.1 or later version
https://support.industry.siemens.com/cs/us/en/view/109793952/
FixedSCALANCE X204-2 (incl. SIPLUS NET variant)siemens_psirt
Update to V5.2.5 or later version
https://support.industry.siemens.com/cs/ww/en/view/109801131/
FixedSCALANCE X204-2FMsiemens_psirt
Update to V5.2.5 or later version
https://support.industry.siemens.com/cs/ww/en/view/109801131/
FixedSCALANCE X204-2LD (incl. SIPLUS NET variant)siemens_psirt
Update to V5.2.5 or later version
https://support.industry.siemens.com/cs/ww/en/view/109801131/
FixedSCALANCE X204-2LD TSsiemens_psirt
Update to V5.2.5 or later version
https://support.industry.siemens.com/cs/ww/en/view/109801131/
FixedSCALANCE X204-2TSsiemens_psirt
Update to V5.2.5 or later version
https://support.industry.siemens.com/cs/ww/en/view/109801131/
FixedSCALANCE X206-1siemens_psirt
Update to V5.2.5 or later version
https://support.industry.siemens.com/cs/ww/en/view/109801131/
FixedSCALANCE X206-1LDsiemens_psirt
Update to V5.2.5 or later version
https://support.industry.siemens.com/cs/ww/en/view/109801131/
FixedSCALANCE X208 (incl. SIPLUS NET variant)siemens_psirt
Update to V5.2.5 or later version
https://support.industry.siemens.com/cs/ww/en/view/109801131/
FixedSCALANCE X208PROsiemens_psirt
Update to V5.2.5 or later version
https://support.industry.siemens.com/cs/ww/en/view/109801131/
FixedSCALANCE X212-2 (incl. SIPLUS NET variant)siemens_psirt
Update to V5.2.5 or later version
https://support.industry.siemens.com/cs/ww/en/view/109801131/
FixedSCALANCE X212-2LDsiemens_psirt
Update to V5.2.5 or later version
https://support.industry.siemens.com/cs/ww/en/view/109801131/
FixedSCALANCE X216siemens_psirt
Update to V5.2.5 or later version
https://support.industry.siemens.com/cs/ww/en/view/109801131/
FixedSCALANCE X224siemens_psirt
Update to V5.2.5 or later version
https://support.industry.siemens.com/cs/ww/en/view/109801131/
FixedSCALANCE XF201-3P IRTsiemens_psirt
Update to V5.5.1 or later version
https://support.industry.siemens.com/cs/us/en/view/109793952/
FixedSCALANCE XF202-2P IRTsiemens_psirt
Update to V5.5.1 or later version
https://support.industry.siemens.com/cs/us/en/view/109793952/
FixedSCALANCE XF204siemens_psirt
Update to V5.2.5 or later version
https://support.industry.siemens.com/cs/ww/en/view/109801131/
FixedSCALANCE XF204 IRTsiemens_psirt
Update to V5.5.1 or later version
https://support.industry.siemens.com/cs/us/en/view/109793952/
FixedSCALANCE XF204-2 (incl. SIPLUS NET variant)siemens_psirt
Update to V5.2.5 or later version
https://support.industry.siemens.com/cs/ww/en/view/109801131/
FixedSCALANCE XF204-2BA IRTsiemens_psirt
Update to V5.5.1 or later version
https://support.industry.siemens.com/cs/us/en/view/109793952/
FixedSCALANCE XF206-1siemens_psirt
Update to V5.2.5 or later version
https://support.industry.siemens.com/cs/ww/en/view/109801131/
FixedSCALANCE XF208siemens_psirt
Update to V5.2.5 or later version
https://support.industry.siemens.com/cs/ww/en/view/109801131/
FixedSCALANCE X200-4P IRTcisa_csaf_ot
Update to V5.5.1 or later version
https://support.industry.siemens.com/cs/us/en/view/109793952/
FixedSCALANCE X201-3P IRTcisa_csaf_ot
Update to V5.5.1 or later version
https://support.industry.siemens.com/cs/us/en/view/109793952/
FixedSCALANCE X201-3P IRT PROcisa_csaf_ot
Update to V5.5.1 or later version
https://support.industry.siemens.com/cs/us/en/view/109793952/
FixedSCALANCE X202-2 IRTcisa_csaf_ot
Update to V5.5.1 or later version
https://support.industry.siemens.com/cs/us/en/view/109793952/
FixedSCALANCE X202-2P IRT (incl. SIPLUS NET variant)cisa_csaf_ot
Update to V5.5.1 or later version
https://support.industry.siemens.com/cs/us/en/view/109793952/
FixedSCALANCE X202-2P IRT PROcisa_csaf_ot
Update to V5.5.1 or later version
https://support.industry.siemens.com/cs/us/en/view/109793952/
FixedSCALANCE X204 IRTcisa_csaf_ot
Update to V5.5.1 or later version
https://support.industry.siemens.com/cs/us/en/view/109793952/
FixedSCALANCE X204 IRT PROcisa_csaf_ot
Update to V5.5.1 or later version
https://support.industry.siemens.com/cs/us/en/view/109793952/
FixedSCALANCE X204-2 (incl. SIPLUS NET variant)cisa_csaf_ot
Update to V5.2.5 or later version
https://support.industry.siemens.com/cs/ww/en/view/109801131/
FixedSCALANCE X204-2FMcisa_csaf_ot
Update to V5.2.5 or later version
https://support.industry.siemens.com/cs/ww/en/view/109801131/
FixedSCALANCE X204-2LD (incl. SIPLUS NET variant)cisa_csaf_ot
Update to V5.2.5 or later version
https://support.industry.siemens.com/cs/ww/en/view/109801131/
FixedSCALANCE X204-2LD TScisa_csaf_ot
Update to V5.2.5 or later version
https://support.industry.siemens.com/cs/ww/en/view/109801131/
FixedSCALANCE X204-2TScisa_csaf_ot
Update to V5.2.5 or later version
https://support.industry.siemens.com/cs/ww/en/view/109801131/
FixedSCALANCE X206-1cisa_csaf_ot
Update to V5.2.5 or later version
https://support.industry.siemens.com/cs/ww/en/view/109801131/
FixedSCALANCE X206-1LDcisa_csaf_ot
Update to V5.2.5 or later version
https://support.industry.siemens.com/cs/ww/en/view/109801131/
FixedSCALANCE X208 (incl. SIPLUS NET variant)cisa_csaf_ot
Update to V5.2.5 or later version
https://support.industry.siemens.com/cs/ww/en/view/109801131/
FixedSCALANCE X208PROcisa_csaf_ot
Update to V5.2.5 or later version
https://support.industry.siemens.com/cs/ww/en/view/109801131/
FixedSCALANCE X212-2 (incl. SIPLUS NET variant)cisa_csaf_ot
Update to V5.2.5 or later version
https://support.industry.siemens.com/cs/ww/en/view/109801131/
FixedSCALANCE X212-2LDcisa_csaf_ot
Update to V5.2.5 or later version
https://support.industry.siemens.com/cs/ww/en/view/109801131/
FixedSCALANCE X216cisa_csaf_ot
Update to V5.2.5 or later version
https://support.industry.siemens.com/cs/ww/en/view/109801131/
FixedSCALANCE X224cisa_csaf_ot
Update to V5.2.5 or later version
https://support.industry.siemens.com/cs/ww/en/view/109801131/
FixedSCALANCE XF201-3P IRTcisa_csaf_ot
Update to V5.5.1 or later version
https://support.industry.siemens.com/cs/us/en/view/109793952/
FixedSCALANCE XF202-2P IRTcisa_csaf_ot
Update to V5.5.1 or later version
https://support.industry.siemens.com/cs/us/en/view/109793952/
FixedSCALANCE XF204cisa_csaf_ot
Update to V5.2.5 or later version
https://support.industry.siemens.com/cs/ww/en/view/109801131/
FixedSCALANCE XF204 IRTcisa_csaf_ot
Update to V5.5.1 or later version
https://support.industry.siemens.com/cs/us/en/view/109793952/
FixedSCALANCE XF204-2 (incl. SIPLUS NET variant)cisa_csaf_ot
Update to V5.2.5 or later version
https://support.industry.siemens.com/cs/ww/en/view/109801131/
FixedSCALANCE XF204-2BA IRTcisa_csaf_ot
Update to V5.5.1 or later version
https://support.industry.siemens.com/cs/us/en/view/109793952/
FixedSCALANCE XF206-1cisa_csaf_ot
Update to V5.2.5 or later version
https://support.industry.siemens.com/cs/ww/en/view/109801131/
FixedSCALANCE XF208cisa_csaf_ot
Update to V5.2.5 or later version
https://support.industry.siemens.com/cs/ww/en/view/109801131/
MitigationSCALANCE X200-4P IRTsiemens_psirt
Limit network traffic of web servers of SCALANCE X switches to trusted connections by firewall rules (port 443/tcp and 80/tcp).
MitigationSCALANCE X201-3P IRTsiemens_psirt
Limit network traffic of web servers of SCALANCE X switches to trusted connections by firewall rules (port 443/tcp and 80/tcp).
MitigationSCALANCE X201-3P IRT PROsiemens_psirt
Limit network traffic of web servers of SCALANCE X switches to trusted connections by firewall rules (port 443/tcp and 80/tcp).
MitigationSCALANCE X202-2 IRTsiemens_psirt
Limit network traffic of web servers of SCALANCE X switches to trusted connections by firewall rules (port 443/tcp and 80/tcp).
MitigationSCALANCE X202-2P IRT (incl. SIPLUS NET variant)siemens_psirt
Limit network traffic of web servers of SCALANCE X switches to trusted connections by firewall rules (port 443/tcp and 80/tcp).
MitigationSCALANCE X202-2P IRT PROsiemens_psirt
Limit network traffic of web servers of SCALANCE X switches to trusted connections by firewall rules (port 443/tcp and 80/tcp).
MitigationSCALANCE X204 IRTsiemens_psirt
Limit network traffic of web servers of SCALANCE X switches to trusted connections by firewall rules (port 443/tcp and 80/tcp).
MitigationSCALANCE X204 IRT PROsiemens_psirt
Limit network traffic of web servers of SCALANCE X switches to trusted connections by firewall rules (port 443/tcp and 80/tcp).
MitigationSCALANCE X204-2 (incl. SIPLUS NET variant)siemens_psirt
Limit network traffic of web servers of SCALANCE X switches to trusted connections by firewall rules (port 443/tcp and 80/tcp).
MitigationSCALANCE X204-2FMsiemens_psirt
Limit network traffic of web servers of SCALANCE X switches to trusted connections by firewall rules (port 443/tcp and 80/tcp).
MitigationSCALANCE X204-2LD (incl. SIPLUS NET variant)siemens_psirt
Limit network traffic of web servers of SCALANCE X switches to trusted connections by firewall rules (port 443/tcp and 80/tcp).
MitigationSCALANCE X204-2LD TSsiemens_psirt
Limit network traffic of web servers of SCALANCE X switches to trusted connections by firewall rules (port 443/tcp and 80/tcp).
MitigationSCALANCE X204-2TSsiemens_psirt
Limit network traffic of web servers of SCALANCE X switches to trusted connections by firewall rules (port 443/tcp and 80/tcp).
MitigationSCALANCE X206-1siemens_psirt
Limit network traffic of web servers of SCALANCE X switches to trusted connections by firewall rules (port 443/tcp and 80/tcp).
MitigationSCALANCE X206-1LDsiemens_psirt
Limit network traffic of web servers of SCALANCE X switches to trusted connections by firewall rules (port 443/tcp and 80/tcp).
MitigationSCALANCE X208 (incl. SIPLUS NET variant)siemens_psirt
Limit network traffic of web servers of SCALANCE X switches to trusted connections by firewall rules (port 443/tcp and 80/tcp).
MitigationSCALANCE X208PROsiemens_psirt
Limit network traffic of web servers of SCALANCE X switches to trusted connections by firewall rules (port 443/tcp and 80/tcp).
MitigationSCALANCE X212-2 (incl. SIPLUS NET variant)siemens_psirt
Limit network traffic of web servers of SCALANCE X switches to trusted connections by firewall rules (port 443/tcp and 80/tcp).
MitigationSCALANCE X212-2LDsiemens_psirt
Limit network traffic of web servers of SCALANCE X switches to trusted connections by firewall rules (port 443/tcp and 80/tcp).
MitigationSCALANCE X216siemens_psirt
Limit network traffic of web servers of SCALANCE X switches to trusted connections by firewall rules (port 443/tcp and 80/tcp).
MitigationSCALANCE X224siemens_psirt
Limit network traffic of web servers of SCALANCE X switches to trusted connections by firewall rules (port 443/tcp and 80/tcp).
MitigationSCALANCE XF201-3P IRTsiemens_psirt
Limit network traffic of web servers of SCALANCE X switches to trusted connections by firewall rules (port 443/tcp and 80/tcp).
MitigationSCALANCE XF202-2P IRTsiemens_psirt
Limit network traffic of web servers of SCALANCE X switches to trusted connections by firewall rules (port 443/tcp and 80/tcp).
MitigationSCALANCE XF204siemens_psirt
Limit network traffic of web servers of SCALANCE X switches to trusted connections by firewall rules (port 443/tcp and 80/tcp).
MitigationSCALANCE XF204 IRTsiemens_psirt
Limit network traffic of web servers of SCALANCE X switches to trusted connections by firewall rules (port 443/tcp and 80/tcp).
MitigationSCALANCE XF204-2 (incl. SIPLUS NET variant)siemens_psirt
Limit network traffic of web servers of SCALANCE X switches to trusted connections by firewall rules (port 443/tcp and 80/tcp).
MitigationSCALANCE XF204-2BA IRTsiemens_psirt
Limit network traffic of web servers of SCALANCE X switches to trusted connections by firewall rules (port 443/tcp and 80/tcp).
MitigationSCALANCE XF206-1siemens_psirt
Limit network traffic of web servers of SCALANCE X switches to trusted connections by firewall rules (port 443/tcp and 80/tcp).
MitigationSCALANCE XF208siemens_psirt
Limit network traffic of web servers of SCALANCE X switches to trusted connections by firewall rules (port 443/tcp and 80/tcp).
MitigationSCALANCE X200-4P IRTcisa_csaf_ot
Limit network traffic of web servers of SCALANCE X switches to trusted connections by firewall rules (port 443/tcp and 80/tcp).
MitigationSCALANCE X201-3P IRTcisa_csaf_ot
Limit network traffic of web servers of SCALANCE X switches to trusted connections by firewall rules (port 443/tcp and 80/tcp).
MitigationSCALANCE X201-3P IRT PROcisa_csaf_ot
Limit network traffic of web servers of SCALANCE X switches to trusted connections by firewall rules (port 443/tcp and 80/tcp).
MitigationSCALANCE X202-2 IRTcisa_csaf_ot
Limit network traffic of web servers of SCALANCE X switches to trusted connections by firewall rules (port 443/tcp and 80/tcp).
MitigationSCALANCE X202-2P IRT (incl. SIPLUS NET variant)cisa_csaf_ot
Limit network traffic of web servers of SCALANCE X switches to trusted connections by firewall rules (port 443/tcp and 80/tcp).
MitigationSCALANCE X202-2P IRT PROcisa_csaf_ot
Limit network traffic of web servers of SCALANCE X switches to trusted connections by firewall rules (port 443/tcp and 80/tcp).
MitigationSCALANCE X204 IRTcisa_csaf_ot
Limit network traffic of web servers of SCALANCE X switches to trusted connections by firewall rules (port 443/tcp and 80/tcp).
MitigationSCALANCE X204 IRT PROcisa_csaf_ot
Limit network traffic of web servers of SCALANCE X switches to trusted connections by firewall rules (port 443/tcp and 80/tcp).
MitigationSCALANCE X204-2 (incl. SIPLUS NET variant)cisa_csaf_ot
Limit network traffic of web servers of SCALANCE X switches to trusted connections by firewall rules (port 443/tcp and 80/tcp).
MitigationSCALANCE X204-2FMcisa_csaf_ot
Limit network traffic of web servers of SCALANCE X switches to trusted connections by firewall rules (port 443/tcp and 80/tcp).
MitigationSCALANCE X204-2LD (incl. SIPLUS NET variant)cisa_csaf_ot
Limit network traffic of web servers of SCALANCE X switches to trusted connections by firewall rules (port 443/tcp and 80/tcp).
MitigationSCALANCE X204-2LD TScisa_csaf_ot
Limit network traffic of web servers of SCALANCE X switches to trusted connections by firewall rules (port 443/tcp and 80/tcp).
MitigationSCALANCE X204-2TScisa_csaf_ot
Limit network traffic of web servers of SCALANCE X switches to trusted connections by firewall rules (port 443/tcp and 80/tcp).
MitigationSCALANCE X206-1cisa_csaf_ot
Limit network traffic of web servers of SCALANCE X switches to trusted connections by firewall rules (port 443/tcp and 80/tcp).
MitigationSCALANCE X206-1LDcisa_csaf_ot
Limit network traffic of web servers of SCALANCE X switches to trusted connections by firewall rules (port 443/tcp and 80/tcp).
MitigationSCALANCE X208 (incl. SIPLUS NET variant)cisa_csaf_ot
Limit network traffic of web servers of SCALANCE X switches to trusted connections by firewall rules (port 443/tcp and 80/tcp).
MitigationSCALANCE X208PROcisa_csaf_ot
Limit network traffic of web servers of SCALANCE X switches to trusted connections by firewall rules (port 443/tcp and 80/tcp).
MitigationSCALANCE X212-2 (incl. SIPLUS NET variant)cisa_csaf_ot
Limit network traffic of web servers of SCALANCE X switches to trusted connections by firewall rules (port 443/tcp and 80/tcp).
MitigationSCALANCE X212-2LDcisa_csaf_ot
Limit network traffic of web servers of SCALANCE X switches to trusted connections by firewall rules (port 443/tcp and 80/tcp).
MitigationSCALANCE X216cisa_csaf_ot
Limit network traffic of web servers of SCALANCE X switches to trusted connections by firewall rules (port 443/tcp and 80/tcp).
MitigationSCALANCE X224cisa_csaf_ot
Limit network traffic of web servers of SCALANCE X switches to trusted connections by firewall rules (port 443/tcp and 80/tcp).
MitigationSCALANCE XF201-3P IRTcisa_csaf_ot
Limit network traffic of web servers of SCALANCE X switches to trusted connections by firewall rules (port 443/tcp and 80/tcp).
MitigationSCALANCE XF202-2P IRTcisa_csaf_ot
Limit network traffic of web servers of SCALANCE X switches to trusted connections by firewall rules (port 443/tcp and 80/tcp).
MitigationSCALANCE XF204cisa_csaf_ot
Limit network traffic of web servers of SCALANCE X switches to trusted connections by firewall rules (port 443/tcp and 80/tcp).
MitigationSCALANCE XF204 IRTcisa_csaf_ot
Limit network traffic of web servers of SCALANCE X switches to trusted connections by firewall rules (port 443/tcp and 80/tcp).
MitigationSCALANCE XF204-2 (incl. SIPLUS NET variant)cisa_csaf_ot
Limit network traffic of web servers of SCALANCE X switches to trusted connections by firewall rules (port 443/tcp and 80/tcp).
MitigationSCALANCE XF204-2BA IRTcisa_csaf_ot
Limit network traffic of web servers of SCALANCE X switches to trusted connections by firewall rules (port 443/tcp and 80/tcp).
MitigationSCALANCE XF206-1cisa_csaf_ot
Limit network traffic of web servers of SCALANCE X switches to trusted connections by firewall rules (port 443/tcp and 80/tcp).
MitigationSCALANCE XF208cisa_csaf_ot
Limit network traffic of web servers of SCALANCE X switches to trusted connections by firewall rules (port 443/tcp and 80/tcp).

cvss

Technical severity, 0–10. One row per scoring source.

9.8

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · high–critical · 7.5–9.8

v2.07.5highAV:N/AC:L/Au:N/C:P/I:P/A:Pprimary · NVD / NIST USexploitability 10 · impact 6.4

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 5.9

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:Csecondary · CISA US

v3.19.8criticalAV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:Csecondary · Siemens ProductCERT DE

v3.19criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-122USCWE-122USCWE-122USCWE-122USCWE-787USCWE-787US

affected products (176)

Products and version ranges known to be affected.

SCALANCE X200-4P IRTall versionscisa_csaf_otUS
SCALANCE X201-3P IRTall versionscisa_csaf_otUS
SCALANCE X201-3P IRT PROall versionscisa_csaf_otUS
SCALANCE X202-2 IRTall versionscisa_csaf_otUS
SCALANCE X202-2P IRT (incl. SIPLUS NET variant)all versionscisa_csaf_otUS
SCALANCE X202-2P IRT PROall versionscisa_csaf_otUS
SCALANCE X204 IRTall versionscisa_csaf_otUS
SCALANCE X204 IRT PROall versionscisa_csaf_otUS
SCALANCE X204-2 (incl. SIPLUS NET variant)all versionscisa_csaf_otUS
SCALANCE X204-2FMall versionscisa_csaf_otUS
SCALANCE X204-2LD (incl. SIPLUS NET variant)all versionscisa_csaf_otUS
SCALANCE X204-2LD TSall versionscisa_csaf_otUS
SCALANCE X204-2TSall versionscisa_csaf_otUS
SCALANCE X206-1all versionscisa_csaf_otUS
SCALANCE X206-1LDall versionscisa_csaf_otUS
SCALANCE X208 (incl. SIPLUS NET variant)all versionscisa_csaf_otUS
SCALANCE X208PROall versionscisa_csaf_otUS
SCALANCE X212-2 (incl. SIPLUS NET variant)all versionscisa_csaf_otUS
SCALANCE X212-2LDall versionscisa_csaf_otUS
SCALANCE X216all versionscisa_csaf_otUS

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advisories (2)

Vendor and ecosystem advisories describing this.

SSA-187092SSA-187092: Several Buffer-Overflow Vulnerabilities in Web Server of SCALANCE X-2002021-04-13csaf · siemens_psirtDE
Several SCALANCE X-200 switches contain buffer overflow vulnerabilities in the web server. In the most severe case an attacker could potentially remotely execute code. Siemens is preparing updates and recommends specific countermeasures for products where updates are not, or not yet available.
ICSA-21-103-07Siemens Web Server of SCALANCE X200 (Update A)2021-04-13icsa · cisa_csaf_otUS
Several SCALANCE X-200 switches contain buffer overflow vulnerabilities in the web server. In the most severe case an attacker could potentially remotely execute code. Siemens is preparing updates and recommends specific countermeasures for products where updates are not, or not yet available.

also known as (6)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu cisa_csaf_ot siemens_psirt NVD CVE.org MITRE

published 2021-04-22modified 2026-06-17

references (7)

External citations — patches, advisories, analysis.

scry

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