CVE-2025-21747 is a Linux kernel vulnerability affecting the drm/ast driver, specifically related to the ASTDP transmitter's video signal enablement timeout. The issue causes a kernel error message due to an insufficient timeout period (200ms instead of 1s), though the video signal still functions correctly. This vulnerability is rated Medium severity (CVSS 5.5) with a local attack vector, low complexity, and a potential impact of high availability degradation (kernel error messages). There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 6.13, < 6.13.3CPE matchmatch criteria | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | ||
6.14CPE matchmatch criteria | cpe:2.3:o:linux:linux_kernel:6.14:rc1:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/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.
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.