CVE-2022-20625: cisco cisco nx-os software Resource Management Errors
Vulnerability summary
CVE-2022-20625 is a medium (CVSS 6.1) Resource Management Errors vulnerability in cisco cisco nx-os software. EPSS estimates a 3.26% chance of exploitation in the next 30 days, higher than 88.1% of scored vulnerabilities.
Timeline
- 23-02-2022PublishedVulnerability first disclosed.
- 06-11-2024Last modifiedVulnerability information updated.
Description
A vulnerability in the Cisco Discovery Protocol service of Cisco FXOS Software and Cisco NX-OS Software could allow an unauthenticated, adjacent attacker to cause the service to restart, resulting in a denial of service (DoS) condition. This vulnerability is due to improper handling of Cisco Discovery Protocol messages that are processed by the Cisco Discovery Protocol service. An attacker could exploit this vulnerability by sending a series of malicious Cisco Discovery Protocol messages to an affected device. A successful exploit could allow the attacker to cause the Cisco Discovery Protocol service to fail and restart. In rare conditions, repeated failures of the process could occur, which could cause the entire device to restart.
CVSS metrics
3 scores · 2 sources · 2 versions- NVDNIST4.3MediumCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
EPSS trend
Probability
3.26%
Chance of exploitation in the next 30 days
Percentile
88%
Versus all other CVEs
30-day change
0.00 pp
From 3.26% 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
Cisco3 products
- cisco nx-os softwaren/a
- firepower_extensible_operating_system< 2.3.1.219 | ≥ 2.4, < 2.9.1.158 | ≥ 2.10, < 2.10.1.179
- nx-os8.2\(7.34\) | 5.2\(1\)sv5\(1.3b\) | 9.3\(8.15\) | 4.0\(1a\)a | 4.1\(3f\)c
1 vendor · 3 products
References
1 links- tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cdp-dos-G8DPLWYGVendor AdvisoryX Refsource CISCO