CVE-2020-3231

lowPriorität · verfolgen · 19OT-Risiko · erhöhtEPSS 0.005 · 39. PerzentilEURUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.45% (39th) EPSS

CVSS 2.9 · low

Is it mine?

72 products

Prüfe deine Angriffsfläche

Who says so?

4 sources

cnnvd · enisa_euvd · fstec_bdu · cisco_csaf

EPSS · bewertet 2026-10-27

A vulnerability in the 802.1X feature of Cisco Catalyst 2960-L Series Switches and Cisco Catalyst CDB-8P Switches could allow an unauthenticated, adjacent attacker to forward broadcast traffic before being authenticated on the port. The vulnerability exists because broadcast traffic that is received on the 802.1X-enabled port is mishandled. An attacker could exploit this vulnerability by sending broadcast traffic on the port before being authenticated. A successful exploit could allow the attacker to send and receive broadcast traffic on the 802.1X-enabled port before authentication.

Behebungen

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

Ein Hersteller-Fix ist verfügbar.

Behoben12.2(6)I1cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
Behoben15.1(3)SVR1cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
Behoben15.1(3)SVR10cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
Behoben15.1(3)SVR2cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
Behoben15.1(3)SVR3cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
Behoben15.1(3)SVScisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
Behoben15.1(3)SVS1cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
Behoben15.1(3)SVT1cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
Behoben15.1(3)SVT2cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
Behoben15.1(3)SVT3cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
Behoben15.1(3)SVT4cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
Behoben15.1(3)SVU1cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
Behoben15.1(3)SVU10cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
Behoben15.1(3)SVU11cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
Behoben15.1(3)SVU2cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
Behoben15.1(3)SVU20cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
Behoben15.1(3)SVU21cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
Behoben15.1(3)SVV1cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
Behoben15.1(3)SVV2cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
Behoben15.1(3)SVV3cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
Behoben15.1(3)SVV4cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
Behoben15.1(3)SVWcisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
Behoben15.1(3)SVW1cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
Behoben15.1(3)SVXcisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
Behoben15.1(3)SVX1cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
Behoben15.2(5)E2cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
Behoben15.2(5)EXcisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
Behoben15.2(5a)Ecisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
Behoben15.2(5b)Ecisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
Behoben15.2(5c)Ecisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
Behoben15.2(6)Ecisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
Behoben15.2(6)E0ccisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
Behoben15.2(6)E1cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
Behoben15.2(6)E1acisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
Behoben15.2(6)E1scisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
Behoben15.2(6)E2cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
Behoben15.2(6)E2bcisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
Behoben15.2(6)E3cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
Behoben15.2(6)E4cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
Behoben15.2(7)Ecisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
Behoben15.2(7)E0acisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
Behoben15.2(7)E0scisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
Behoben15.2(7a)E0bcisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
Behoben15.2(7b)E0bcisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
Behoben15.3(3)JAA1cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com

cvss

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

4.7

010

Basiswert 0–10 · höher = schwerwiegender · Vektor überfahren zum Auflösen⚠ Quellen uneinig · low–medium · 2.9–4.7

v2.02.9lowAV:A/AC:M/Au:N/C:P/I:N/A:Nprimary · NVD / NIST USAusnutzbarkeit 5.5 · Auswirkung 2.9

v3.14.7mediumCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:Nprimary · NVD / NIST USAusnutzbarkeit 2.8 · Auswirkung 1.4

v3.04.7mediumCVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:Nsecondary · ENISA EU

v3.04.7mediumCVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:Nsecondary · psirt@cisco.com USAusnutzbarkeit 2.8 · Auswirkung 1.4

v3.04.7mediumCVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:Nsecondary · Cisco PSIRT US

v3.14.7mediumAV:A/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:Nsecondary · FSTEC (BDU) RU

v3.14.3mediumCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N/E:Usecondary · CVSS-BT (t0sche)

SSVC

Eine Handlungsentscheidung — aus Ausnutzung und Auswirkung.

Trackcoordinatorcisa_ssvcUS

schwächen

Die CWE-Schwächeklassen, zu denen dies gehört.

CWE-863USprimärCWE-284USCWE-284US

betroffene Produkte (72)

Betroffene Produkte und Versionsbereiche.

Cisco 12.2(6)I1alle Versionencisco_csafUS
Cisco 15.1(3)SVR1alle Versionencisco_csafUS
Cisco 15.1(3)SVR10alle Versionencisco_csafUS
Cisco 15.1(3)SVR2alle Versionencisco_csafUS
Cisco 15.1(3)SVR3alle Versionencisco_csafUS
Cisco 15.1(3)SVSalle Versionencisco_csafUS
Cisco 15.1(3)SVS1alle Versionencisco_csafUS
Cisco 15.1(3)SVT1alle Versionencisco_csafUS
Cisco 15.1(3)SVT2alle Versionencisco_csafUS
Cisco 15.1(3)SVT3alle Versionencisco_csafUS
Cisco 15.1(3)SVT4alle Versionencisco_csafUS
Cisco 15.1(3)SVU1alle Versionencisco_csafUS
Cisco 15.1(3)SVU10alle Versionencisco_csafUS
Cisco 15.1(3)SVU11alle Versionencisco_csafUS
Cisco 15.1(3)SVU2alle Versionencisco_csafUS
Cisco 15.1(3)SVU20alle Versionencisco_csafUS
Cisco 15.1(3)SVU21alle Versionencisco_csafUS
Cisco 15.1(3)SVV1alle Versionencisco_csafUS
Cisco 15.1(3)SVV2alle Versionencisco_csafUS
Cisco 15.1(3)SVV3alle Versionencisco_csafUS

20 von 72 angezeigt

Advisories (1)

Hersteller- und Ökosystem-Meldungen dazu.

cisco-sa-c2960L-DpWA9Re4Cisco IOS Software for Catalyst 2960-L Series Switches and Catalyst CDB-8P Switches 802.1X Authentication Bypass Vulnerability2020-06-03csaf · cisco_csafUS
A vulnerability in the 802.1X feature of Cisco Catalyst 2960-L Series Switches and Cisco Catalyst CDB-8P Switches could allow an unauthenticated, adjacent attacker to forward broadcast traffic before being authenticated on the port. The vulnerability exists because broadcast traffic that is received on the 802.1X-enabled port is mishandled. An attacker could exploit this vulnerability by sending broadcast traffic on the port before being authenticated. A successful exploit could allow the attacker to send and receive broadcast traffic on the 802.1X-enabled port before authentication. Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability. This advisory is available at the following link: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-c2960L-DpWA9Re4 ["https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-c2960L-DpWA9Re4"]

auch bekannt als (4)

Weitere Namen und Kennungen dieser Entität.

quellen

Welche Quellen diesen Datensatz belegen und wann.

cnnvd enisa_euvd fstec_bdu cisco_csaf NVD CVE.org MITRE

veröffentlicht 2020-06-03geändert 2026-06-17

verwandt (5,011)

Verwandte Einträge.

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Adobe Commerce is affected by an Incorrect Authorization vulnerability that could result in privilege escalation. An attacker could leverage this vulnerability to gain elevated acc…
CVE-2026-42016US	high8.8OT kritisch	8.64% (95th)	KEV	2026-07-27
JFrog Artifactory (Self Hosted) versions before 7.133.11 are vulnerable to a privilege escalation attack due to a validation check of the token signature/issuer and not the token’s…
CVE-2025-55177US	—OT kritisch	13.1% (96th)	KEV	2025-08-29
Incomplete authorization of linked device synchronization messages in WhatsApp for iOS prior to v2.25.21.73, WhatsApp Business for iOS v2.25.21.78, and WhatsApp for Mac v2.25.21.78…
CVE-2025-54253US	—OT kritisch	88.8% (100th)	KEV	2025-08-05
Adobe Experience Manager versions 6.5.23 and earlier are affected by a Misconfiguration vulnerability that could result in arbitrary code execution. An attacker could leverage this…
CVE-2025-21479US	—OT kritisch	0.84% (58th)	KEV	2025-06-03
Memory corruption due to unauthorized command execution in GPU micronode while executing specific sequence of commands.

+5006 weitere

Referenzen (5)

Externe Belege — Patches, Meldungen, Analysen.

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