CVE-2025-20162 describes a denial-of-service vulnerability in Cisco IOS XE Software's DHCP snooping feature, affecting devices running this operating system. An unauthenticated, remote attacker can exploit this by sending specially crafted DHCP request packets, leading to a full interface queue wedge and requiring a system restart to restore functionality. With a CVSS score of 8.6 (High), this vulnerability is easily exploitable over the network with low attack complexity, resulting in high availability impact. Currently, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion, though it has received some media coverage.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
16.11.1CPE matchmatch criteria | cpe:2.3:o:cisco:ios_xe:16.11.1:*:*:*:*:*:*:* | ||
16.11.1aCPE matchmatch criteria | cpe:2.3:o:cisco:ios_xe:16.11.1a:*:*:*:*:*:*:* | ||
16.11.1sCPE matchmatch criteria | cpe:2.3:o:cisco:ios_xe:16.11.1s:*:*:*:*:*:*:* | ||
16.11.2CPE matchmatch criteria | cpe:2.3:o:cisco:ios_xe:16.11.2:*:*:*:*:*:*:* | ||
16.12.1CPE matchmatch criteria | cpe:2.3:o:cisco:ios_xe:16.12.1:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.