CVE-2025-38477 is a race condition vulnerability in the Linux kernel's net/sched: sch_qfq component, specifically affecting Debian and other Linux distributions. This flaw can lead to a NULL dereference or use-after-free, potentially causing denial of service. With a CVSS score of 4.7 (Medium), exploitation requires local access and high attack complexity, but no user interaction. Currently, there is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 3.8, < 5.4.297CPE matchmatch criteria | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | ||
>= 5.5, < 5.10.241CPE matchmatch criteria | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | ||
>= 5.11, < 5.15.190CPE matchmatch criteria | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | ||
>= 5.16, < 6.1.147CPE matchmatch criteria | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | ||
>= 6.2, < 6.6.100CPE matchmatch criteria | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.4 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
HP ThinPro 8.1 SP9 Security Updates
Feb 2, 2026Linux kernel privilege escalation on Container-Optimized OS nodes (CVE-2025-38477)
Oct 15, 2025Linux kernel privilege escalation on Container-Optimized OS nodes
Aug 23, 2025kernel: net/sched: sch_qfq: Fix race condition on qfq_aggregate
Jul 28, 2025net/sched: sch_qfq: Fix race condition on qfq_aggregate
Jul 8, 2025