CVE-2021-21004

mediumPriorität · verfolgen · 24EPSS 0.006 · 48. PerzentilDEEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.58% (48th) EPSS

CVSS 4.3 · medium

Is it mine?

45 products

Prüfe deine Angriffsfläche

Who says so?

4 sources

cnnvd · enisa_euvd · nvd · phoenix_contact_psirt

EPSS · bewertet 2026-10-27

In Phoenix Contact FL SWITCH SMCS series products in multiple versions an attacker may insert malicious code via LLDP frames into the web-based management which could then be executed by the client.

Behebungen

Hersteller-Fix, Mitigation oder Workaround, wie von den Quellen veröffentlicht.

Noch kein Hersteller-Fix; eine Mitigation ist verfügbar.

Mitigationphoenix_contact_psirt
Phoenix Contact recommends operating network-capable devices in closed networks or protected with a suitable firewall. For detailed information on our recommendations for measures to protect network-capable devices, please refer to our application note: Measures to protect network-capable devices with Ethernet connection

cvss

Technischer Schweregrad, 0–10. Eine Zeile je Quelle.

7.4

010

Basiswert 0–10 · höher = schwerwiegender · Vektor überfahren zum Auflösen⚠ Quellen uneinig · medium–high · 4.3–7.4

v2.04.3mediumAV:N/AC:M/Au:N/C:N/I:P/A:Nprimary · NVD / NIST USAusnutzbarkeit 8.6 · Auswirkung 2.9

v3.16.1mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:Nprimary · NVD / NIST USAusnutzbarkeit 2.8 · Auswirkung 2.7

v3.17.4highCVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:C/C:L/I:H/A:Nsecondary · ENISA EU

v3.17.4highCVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:C/C:L/I:H/A:Nsecondary · info@cert.vde.comAusnutzbarkeit 2.1 · Auswirkung 4.7

v3.16.1mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:Nsecondary · Phoenix Contact PSIRT DE

v3.15.6mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:Usecondary · CVSS-BT (t0sche)

schwächen

Die CWE-Schwächeklassen, zu denen dies gehört.

CWE-79USprimärCWE-79US

betroffene Produkte (45)

Betroffene Produkte und Versionsbereiche.

PHOENIX CONTACT FL NAT≤ SMN 8TX-M (2702443) ≤4.63enisa_euvdEU
PHOENIX CONTACT FL NAT≤ SMN 8TX (2989365) ≤4.63enisa_euvdEU
PHOENIX CONTACT FL SWITCH≤ SMN 8TX-PN (2989501) ≤4.70enisa_euvdEU
PHOENIX CONTACT FL SWITCH≤ SMCS 6GT/2SFP (2891479) ≤4.70enisa_euvdEU
PHOENIX CONTACT FL SWITCH≤ SMCS 8GT (2891123) ≤4.70enisa_euvdEU
PHOENIX CONTACT FL SWITCH≤ SMCS 14TX/2FX (2700997) ≤4.70enisa_euvdEU
PHOENIX CONTACT FL SWITCH≤ SMN 6TX/2FX (2989543) ≤4.70enisa_euvdEU
PHOENIX CONTACT FL SWITCH≤ SMCS 6TX/2SFP (2989323) ≤4.70enisa_euvdEU
PHOENIX CONTACT FL SWITCH≤ SMCS 14TX/2FX-SM (2701466) ≤4.70enisa_euvdEU
PHOENIX CONTACT FL SWITCH≤ SMN 6TX/2POF-PN (2700290) ≤4.70enisa_euvdEU
PHOENIX CONTACT FL SWITCH≤ SMN 6TX/2FX SM (2989556) ≤4.70enisa_euvdEU
PHOENIX CONTACT FL SWITCH≤ SMCS 8TX (2989226) ≤4.70enisa_euvdEU
PHOENIX CONTACT FL SWITCH≤ SMCS 16TX (2700996) ≤4.70enisa_euvdEU
PHOENIX CONTACT FL SWITCH≤ SMCS 8TX-PN (2989103) ≤4.70enisa_euvdEU
PHOENIX CONTACT FL SWITCH≤ SMCS 4TX-PN (2989093) ≤4.70enisa_euvdEU
phoenixcontact fl nat smn 8tx firmware≤ 4.63nvdUScpe:2.3:o:phoenixcontact:fl_nat_smn_8tx_firmware:*:*:*:*:*:*:*:*
phoenixcontact fl nat smn 8tx-m firmware≤ 4.63nvdUScpe:2.3:o:phoenixcontact:fl_nat_smn_8tx-m_firmware:*:*:*:*:*:*:*:*
phoenixcontact fl switch smcs 14tx/2fx firmware≤ 4.70nvdUScpe:2.3:o:phoenixcontact:fl_switch_smcs_14tx\/2fx_firmware:*:*:*:*:*:*:*:*
phoenixcontact fl switch smcs 14tx/2fx-sm firmware≤ 4.70nvdUScpe:2.3:o:phoenixcontact:fl_switch_smcs_14tx\/2fx-sm_firmware:*:*:*:*:*:*:*:*
phoenixcontact fl switch smcs 16tx firmware≤ 4.70nvdUScpe:2.3:o:phoenixcontact:fl_switch_smcs_16tx_firmware:*:*:*:*:*:*:*:*

20 von 45 angezeigt

Advisories (1)

Hersteller- und Ökosystem-Meldungen dazu.

VDE-2021-023PHOENIX CONTACT: Security Advisory for FL SWITCH SMCS series2021-06-23csaf · phoenix_contact_psirtDE
Multiple vulnerabilities have been discovered in the current firmware of the PHOENIX CONTACT FL SWITCH SMCS series switches.

auch bekannt als (3)

Weitere Namen und Kennungen dieser Entität.

quellen

Welche Quellen diesen Datensatz belegen und wann.

cnnvd enisa_euvd nvd phoenix_contact_psirt NVD CVE.org MITRE

veröffentlicht 2021-06-25geändert 2026-06-17

verwandt (53,013)

Verwandte Einträge.

ID	Schweregrad	EPSS	ausnutzbar	veröffentlicht
CVE-2026-42897US	medium6.1OT kritisch	70.7% (99th)	KEV	2026-05-14
Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Exchange Server allows an unauthorized attacker to perform spoofing over a network…
CVE-2025-66376US	medium6.1OT kritisch	20.2% (97th)	KEV	2026-01-05
Zimbra Collaboration (ZCS) 10 before 10.0.18 and 10.1 before 10.1.13 allows Classic UI stored XSS via Cascading Style Sheets (CSS) @import directives in an HTML e-mail message.
CVE-2025-68461US	medium6.1OT kritisch	27.4% (98th)	KEV	2025-12-18
Roundcube Webmail before 1.5.12 and 1.6 before 1.6.12 is prone to a Cross-Site-Scripting (XSS) vulnerability via the animate tag in an SVG document.
CVE-2025-48700US	—OT kritisch	1.71% (77th)	KEV	2025-06-23
An issue was discovered in Zimbra Collaboration (ZCS) 8.8.15 and 9.0 and 10.0 and 10.1. A Cross-Site Scripting (XSS) vulnerability in the Zimbra Classic UI allows attackers to exec…
CVE-2025-27915US	—OT kritisch	4.06% (91st)	KEV	2025-03-12
An issue was discovered in Zimbra Collaboration (ZCS) 9.0 and 10.0 and 10.1. A stored cross-site scripting (XSS) vulnerability exists in the Classic Web Client due to insufficient…

+53008 weitere

Referenzen (3)

Externe Belege — Patches, Meldungen, Analysen.

https://cert.vde.com/en-us/advisories/vde-2021-023 cnnvd
https://cert.vde.com/en-us/advisories/vde-2021-023 enisa_euvd
https://cert.vde.com/en-us/advisories/vde-2021-023Not ApplicableThird Party Advisorynvd

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