7.4

CVE-2025-20311

A vulnerability in the handling of certain Ethernet frames in Cisco IOS XE Software for Catalyst 9000 Series Switches could allow an unauthenticated, adjacent attacker to cause an egress port to become blocked and drop all outbound traffic.

 This vulnerability is due to improper handling of crafted Ethernet frames. An attacker could exploit this vulnerability by sending crafted Ethernet frames through an affected switch. A successful exploit could allow the attacker to cause the egress port to which the crafted frame is forwarded to start dropping all frames, resulting in a denial of service (DoS) condition.

Verknüpft mit AI von unstrukturierten Daten zu bestehenden CPE der NVD
This information is available to logged-in users.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
VendorCisco
≫
Product Cisco IOS XE Software
Version 16.6.1
Status affected
Version 16.6.2
Status affected
Version 16.6.3
Status affected
Version 16.6.4
Status affected
Version 16.6.5
Status affected
Version 16.6.4a
Status affected
Version 16.6.6
Status affected
Version 16.6.7
Status affected
Version 16.6.8
Status affected
Version 16.6.9
Status affected
Version 16.6.10
Status affected
Version 16.7.1
Status affected
Version 16.8.1
Status affected
Version 16.8.1a
Status affected
Version 16.8.1s
Status affected
Version 16.9.1
Status affected
Version 16.9.2
Status affected
Version 16.9.1s
Status affected
Version 16.9.3
Status affected
Version 16.9.4
Status affected
Version 16.9.5
Status affected
Version 16.9.6
Status affected
Version 16.9.7
Status affected
Version 16.9.8
Status affected
Version 16.10.1
Status affected
Version 16.10.1s
Status affected
Version 16.10.1e
Status affected
Version 16.11.1
Status affected
Version 16.11.1b
Status affected
Version 16.11.1s
Status affected
Version 16.12.1
Status affected
Version 16.12.1s
Status affected
Version 16.12.1c
Status affected
Version 16.12.2
Status affected
Version 16.12.3
Status affected
Version 16.12.8
Status affected
Version 16.12.2s
Status affected
Version 16.12.4
Status affected
Version 16.12.3s
Status affected
Version 16.12.3a
Status affected
Version 16.12.4a
Status affected
Version 16.12.5
Status affected
Version 16.12.6
Status affected
Version 16.12.5b
Status affected
Version 16.12.6a
Status affected
Version 16.12.7
Status affected
Version 16.12.14
Status affected
Version 17.1.1
Status affected
Version 17.1.1s
Status affected
Version 17.1.1t
Status affected
Version 17.1.3
Status affected
Version 17.2.1
Status affected
Version 17.2.1a
Status affected
Version 17.3.1
Status affected
Version 17.3.2
Status affected
Version 17.3.3
Status affected
Version 17.3.2a
Status affected
Version 17.3.4
Status affected
Version 17.3.5
Status affected
Version 17.3.6
Status affected
Version 17.3.4b
Status affected
Version 17.3.7
Status affected
Version 17.3.8
Status affected
Version 17.3.8a
Status affected
Version 17.4.1
Status affected
Version 17.5.1
Status affected
Version 17.6.1
Status affected
Version 17.6.2
Status affected
Version 17.6.3
Status affected
Version 17.6.1y
Status affected
Version 17.6.4
Status affected
Version 17.6.5
Status affected
Version 17.6.6
Status affected
Version 17.6.6a
Status affected
Version 17.6.5a
Status affected
Version 17.6.7
Status affected
Version 17.6.8
Status affected
Version 17.7.1
Status affected
Version 17.10.1
Status affected
Version 17.10.1b
Status affected
Version 17.8.1
Status affected
Version 17.9.1
Status affected
Version 17.9.2
Status affected
Version 17.9.3
Status affected
Version 17.9.4
Status affected
Version 17.9.5
Status affected
Version 17.9.4a
Status affected
Version 17.9.6
Status affected
Version 17.9.6a
Status affected
Version 17.11.1
Status affected
Version 17.12.1
Status affected
Version 17.12.2
Status affected
Version 17.12.3
Status affected
Version 17.12.4
Status affected
Version 17.12.1z3
Status affected
Version 17.13.1
Status affected
Version 17.14.1
Status affected
Version 17.11.99SW
Status affected
Version 17.15.1
Status affected
Version 17.15.2
Status affected
Version 17.15.2a
Status affected
Version 17.15.2b
Status affected
Version 17.16.1
Status affected
Zu dieser CVE wurde keine CISA KEV oder CERT.AT-Warnung gefunden.
EPSS Metriken
Type Source Score Percentile
EPSS FIRST.org 0.02% 0.048
CVSS Metriken
Source Base Score Exploit Score Impact Score Vector string
psirt@cisco.com 7.4 2.8 4
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H