CVE-2023-28489

criticalpriority · track · 40EPSS 0.028 · 87 %ileDEEURUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

2.84% (87th) EPSS

CVSS 9.8 · critical

Is it mine?

12 products

Check your exposure

Who says so?

7 sources

cnnvd · enisa_euvd · fstec_bdu · cisa_csaf_ot

EPSS · scored 2026-10-26

A vulnerability has been identified in CP-8031 MASTER MODULE (All versions < CPCI85 V05), CP-8050 MASTER MODULE (All versions < CPCI85 V05). Affected devices are vulnerable to command injection via the web server port 443/tcp, if the parameter “Remote Operation” is enabled. The parameter is disabled by default. The vulnerability could allow an unauthenticated remote attacker to perform arbitrary code execution on the device.

remediations

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

A vendor fix is available.

FixedCP-8031 MASTER MODULE (6MF2803-1AA00)siemens_psirt
Update to CPCI85 V05 or later version
https://support.industry.siemens.com/cs/ww/en/view/109804985/
FixedCP-8050 MASTER MODULE (6MF2805-0AA00)siemens_psirt
Update to CPCI85 V05 or later version
https://support.industry.siemens.com/cs/ww/en/view/109804985/
FixedCP-8031 MASTER MODULE (6MF2803-1AA00)cisa_csaf_ot
Update to CPCI85 V05 or later version
https://support.industry.siemens.com/cs/ww/en/view/109804985/
FixedCP-8050 MASTER MODULE (6MF2805-0AA00)cisa_csaf_ot
Update to CPCI85 V05 or later version
https://support.industry.siemens.com/cs/ww/en/view/109804985/
MitigationCP-8031 MASTER MODULE (6MF2803-1AA00)siemens_psirt
Limit access to the web server on port 80/TCP and 443/TCP with an external firewall.
MitigationCP-8050 MASTER MODULE (6MF2805-0AA00)siemens_psirt
Limit access to the web server on port 80/TCP and 443/TCP with an external firewall.
MitigationCP-8031 MASTER MODULE (6MF2803-1AA00)cisa_csaf_ot
Limit access to the web server on port 80/TCP and 443/TCP with an external firewall.
MitigationCP-8050 MASTER MODULE (6MF2805-0AA00)cisa_csaf_ot
Limit access to the web server on port 80/TCP and 443/TCP with an external firewall.

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

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 · ENISA EU

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · productcert@siemens.com DEexploitability 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 · 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)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: yes · Technical Impact: totalcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-77USprimaryCWE-77USCWE-77USCWE-77US

affected products (12)

Products and version ranges known to be affected.

CP-8031 MASTER MODULE (6MF2803-1AA00)all versionscisa_csaf_otUS
CP-8050 MASTER MODULE (6MF2805-0AA00)all versionscisa_csaf_otUS
Siemens CP-8031 MASTER MODULE (6MF2803-1AA00)< vers:/_CPCI85_V05cisa_csaf_otUS
Siemens CP-8050 MASTER MODULE (6MF2805-0AA00)< vers:/_CPCI85_V05cisa_csaf_otUS
Siemens CP-8031 MASTER MODULEAll versions → CPCI85 V05enisa_euvdEU
Siemens CP-8050 MASTER MODULEAll versions → CPCI85 V05enisa_euvdEU
Siemens AG SICAM A8000 CP-8031≤ CPCI85 V05fstec_bduRU
Siemens AG SICAM A8000 CP-8050≤ CPCI85 V05fstec_bduRU
siemens cp-8031 firmware< cpci85_v05nvdUScpe:2.3:o:siemens:cp-8031_firmware:*:*:*:*:*:*:*:*
siemens cp-8050 firmware< cpci85_v05nvdUScpe:2.3:o:siemens:cp-8050_firmware:*:*:*:*:*:*:*:*
Siemens CP-8031 MASTER MODULE (6MF2803-1AA00)≤ vers:all/<CPCI85 V05siemens_psirtDE
Siemens CP-8050 MASTER MODULE (6MF2805-0AA00)≤ vers:all/<CPCI85 V05siemens_psirtDE

advisories (3)

Vendor and ecosystem advisories describing this.

SSA-472454SSA-472454: Command Injection Vulnerability in CPCI85 Firmware of SICAM A8000 Devices2023-04-11csaf · siemens_psirtDE
The CPCI85 firmware of SICAM A8000 CP-8031 and CP-8050 is affected by unauthenticated command injection vulnerability. This could allow an attacker to perfom remote code execution. Siemens has released updates for the affected products and recommends to update to the latest versions.
WID-SEC-W-2023-0908Siemens SICAM A8000 Geräte: Schwachstelle ermöglicht CodeausführungDeutsch2023-04-10csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann eine Schwachstelle in Siemens SICAM A8000 Geräten ausnutzen, um beliebigen Programmcode auszuführen.
ICSA-23-103-07Siemens CPCI85 Firmware of SICAM A8000 Devices2023-04-11icsa · cisa_csaf_otUS
The CPCI85 firmware of SICAM A8000 CP-8031 and CP-8050 is affected by unauthenticated command injection vulnerability. This could allow an attacker to perfom remote code execution. Siemens has released updates for the affected products and recommends to update to the latest versions.

also known as (5)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu cisa_csaf_ot nvd siemens_psirt cert_bund NVD CVE.org MITRE

published 2023-04-11modified 2026-06-17

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+4583 more

references (11)

External citations — patches, advisories, analysis.

scry

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