CVE-2025-20192 describes a denial-of-service (DoS) vulnerability in the Internet Key Exchange version 1 (IKEv1) implementation of Cisco IOS XE Software. This flaw stems from improper validation of IKEv1 phase 2 parameters, allowing an authenticated, remote attacker with valid IKEv1 VPN credentials to send crafted messages and cause an affected device to reload. The vulnerability carries a CVSS score of 7.7 (HIGH), indicating a network-based attack with low complexity, requiring low privileges, and resulting in high availability impact. Currently, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
| Cisco | Cisco IOS XE Software | 16.10.1, 16.10.1a, 16.10.1b, 16.10.1e, 16.10.1s, 16.10.2, 16.10.3, 16.11.1, 16.11.1a, 16.11.1s, 16.11.2, 16.12.1, 16.12.1a, 16.12.1c, 16.12.1s, 16.12.2, 16.12.2s, 16.12.3, 16.12.3s, 16.12.4, 16.12.5, 16.12.6, 16.12.7, 16.12.8, 16.2.1, 16.2.2, 16.3.1, 16.3.10, 16.3.11, 16.3.1a, 16.3.2, 16.3.3, 16.3.4, 16.3.5, 16.3.6, 16.3.7, 16.3.8, 16.3.9, 16.4.1, 16.4.2, 16.4.3, 16.5.1, 16.5.1b, 16.5.2, 16.5.3, 16.6.1, 16.6.10, 16.6.2, 16.6.3, 16.6.4, 16.6.5, 16.6.6, 16.6.7, 16.6.8, 16.6.9, 16.7.1, 16.7.2, 16.7.3, 16.8.1, 16.8.1s, 16.8.2, 16.8.3, 16.9.1, 16.9.1s, 16.9.2, 16.9.3, 16.9.4, 16.9.5, 16.9.6, 16.9.7, 16.9.8, 17.1.1, 17.1.1s, 17.1.1t, 17.1.3, 17.10.1, 17.10.1a, 17.11.1, 17.11.1a, 17.12.1, 17.12.1a, 17.12.2, 17.12.2a, 17.12.3, 17.12.3a, 17.13.1, 17.13.1a, 17.14.1, 17.14.1a, 17.2.1, 17.2.1r, 17.2.1v, 17.2.2, 17.2.3, 17.3.1, 17.3.1a, 17.3.2, 17.3.3, 17.3.4, 17.3.4a, 17.3.5, 17.3.6, 17.3.7, 17.3.8, 17.3.8a, 17.4.1, 17.4.1a, 17.4.1b, 17.4.2, 17.5.1, 17.5.1a, 17.6.1, 17.6.1a, 17.6.1y, 17.6.2, 17.6.3, 17.6.3a, 17.6.4, 17.6.5, 17.6.5a, 17.6.6, 17.6.6a, 17.6.7, 17.6.8, 17.6.8a, 17.7.1, 17.7.1a, 17.7.2, 17.8.1, 17.8.1a, 17.9.1, 17.9.1a, 17.9.2, 17.9.2a, 17.9.3, 17.9.3a, 17.9.4, 17.9.4a, 17.9.5, 17.9.5a, 17.9.5b, 17.9.5e, 17.9.5f, 3.13.0S, 3.13.10S, 3.13.1S, 3.13.2S, 3.13.3S, 3.13.4S, 3.13.5S, 3.13.6S, 3.13.6aS, 3.13.7S, 3.13.8S, 3.13.9S, 3.14.0S, 3.14.1S, 3.14.2S, 3.14.3S, 3.14.4S, 3.15.0S, 3.15.1S, 3.15.1cS, 3.15.2S, 3.15.3S, 3.15.4S, 3.16.0S, 3.16.0cS, 3.16.10S, 3.16.1aS, 3.16.2S, 3.16.3S, 3.16.4aS, 3.16.4bS, 3.16.4dS, 3.16.5S, 3.16.6S, 3.16.6bS, 3.16.7S, 3.16.7aS, 3.16.7bS, 3.16.8S, 3.16.9S, 3.17.0S, 3.17.1S, 3.17.2S, 3.17.3S, 3.17.4S, 3.18.2aSPCNA affected |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.3 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.