CVE-2023-20168 is a denial-of-service vulnerability affecting Cisco NX-OS Software, specifically within its TACACS+ and RADIUS remote authentication mechanisms. An unauthenticated, local attacker can exploit incorrect input validation by entering a crafted string at the login prompt, causing the device to unexpectedly reload. This vulnerability has a CVSS score of 6.5 (Medium) due to its local attack vector and high impact on availability. While no public exploit code or active exploitation has been observed, there is limited community discussion and media coverage, indicating some awareness of the issue.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
9.3\(11\)CPE matchmatch criteria | cpe:2.3:o:cisco:nx-os:9.3\(11\):*:*:*:*:*:*:* | ||
10.2\(5\)CPE matchmatch criteria | cpe:2.3:o:cisco:nx-os:10.2\(5\):*:*:*:*:*:*:* | ||
Range not provided by sourceCPE matchmatch criteria | cpe:2.3:o:cisco:nx-os:-:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:L/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, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.