CVE-2025-20111: cisco cisco nx-os software
Vulnerability summary
CVE-2025-20111 is a high (CVSS 7.4) vulnerability in cisco cisco nx-os software. EPSS estimates a 0.32% chance of exploitation in the next 30 days, higher than 23.6% of scored vulnerabilities.
Timeline
- 26-02-2025PublishedVulnerability first disclosed.
- 26-02-2025Last modifiedVulnerability information updated.
Description
A vulnerability in the health monitoring diagnostics of Cisco Nexus 3000 Series Switches and Cisco Nexus 9000 Series Switches in standalone NX-OS mode could allow an unauthenticated, adjacent attacker to cause the device to reload unexpectedly, resulting in a denial of service (DoS) condition. This vulnerability is due to the incorrect handling of specific Ethernet frames. An attacker could exploit this vulnerability by sending a sustained rate of crafted Ethernet frames to an affected device. A successful exploit could allow the attacker to cause the device to reload.
CVSS metrics
2 scores · 2 sources · 1 version- NVDNIST7.4HighCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
EPSS trend
Probability
0.32%
Chance of exploitation in the next 30 days
Percentile
24%
Versus all other CVEs
30-day change
+0.01 pp
From 0.32% on 18-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Cisco1 product
- cisco nx-os software9.3(2) | 9.3(1) | 9.3(1z) | 9.3(3) | 9.3(4) | 9.3(5) | 9.3(6) | 10.1(2) | 10.1(1) | 9.3(5w) | 9.3(7) | 9.3(7k) | 10.2(1) | 9.3(7a) | 9.3(8) | 10.2(1q) | 10.2(2) | 9.3(9) | 10.1(2t) | 10.2(3) | 10.2(3t) | 9.3(10) | 10.2(2a) | 10.3(1) | 10.2(4) | 10.3(2) | 9.3(11) | 10.3(3) | 10.2(5) | 9.3(12) | 10.2(3v) | 10.4(1) | 10.3(99w) | 10.2(6) | 10.3(3w) | 10.3(99x) | 10.3(3o) | 10.3(4) | 10.3(3p) | 10.3(4a) | 10.4(2) | 10.3(3q) | 9.3(13) | 10.3(5) | 10.2(7) | 10.4(3) | 10.3(3x) | 10.3(4g) | 10.5(1) | 10.2(8) | 10.3(3r) | 9.3(14) | 10.3(4h)
1 vendor · 1 product