CVE-2023-20190 is a medium-severity vulnerability in Cisco IOS XR Software's classic access control list (ACL) compression feature. It allows an unauthenticated, remote attacker to bypass configured ACL protections due to incorrect destination address range encoding. This could grant access to trusted networks that the device is intended to protect. While there are workarounds available, there is currently no evidence of active exploitation, public exploit code, or significant community discussion.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 7.3.5CPE matchmatch criteria | cpe:2.3:o:cisco:ios_xr:*:*:*:*:*:*:*:* | ||
>= 7.5, < 7.5.4CPE matchmatch criteria | cpe:2.3:o:cisco:ios_xr:*:*:*:*:*:*:*:* | ||
>= 7.6, < 7.8.2CPE matchmatch criteria | cpe:2.3:o:cisco:ios_xr:*:*:*:*:*:*:*:* | ||
7.9CPE matchmatch criteria | cpe:2.3:o:cisco:ios_xr:7.9:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.