CVE-2025-37823
Medium
Elevated severity or exploit probability.
CVSS base
7.8
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS — probability of exploitation (30 days)
0.2%
11.2th percentile
CISA KEV
Not listed
Weakness / dates
CWE-416
Published 2025-05-08 · modified 2026-07-30
CVSS breakdown
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
| Attack Vector | L | Local |
| Attack Complexity | L | Low |
| Privileges Required | L | Low |
| User Interaction | N | None |
| Scope | U | Unchanged |
| Confidentiality | H | High |
| Integrity | H | High |
| Availability | H | High |
Timeline
- 2025-05-08 — Published (NVD)
- 2026-07-30 — Last modified (NVD)
Description
In the Linux kernel, the following vulnerability has been resolved: net_sched: hfsc: Fix a potential UAF in hfsc_dequeue() too Similarly to the previous patch, we need to safe guard hfsc_dequeue() too. But for this one, we don't have a reliable reproducer.
Affected
References
- https://git.kernel.org/stable/c/11bccb054c1462fb069219f8e98e97a5a730758e
- https://git.kernel.org/stable/c/2f46d14919c39528c6e540ebc43f90055993eedc
- https://git.kernel.org/stable/c/68f256305ceb426d545a0dc31f83c2ab1d211a1e
- https://git.kernel.org/stable/c/6ccbda44e2cc3d26fd22af54c650d6d5d801addf
- https://git.kernel.org/stable/c/76c4c22c2437d3d3880efc0f62eca06ef078d290
- https://git.kernel.org/stable/c/c6936266f8bf98a53f28ef9a820e6a501e946d09
- https://git.kernel.org/stable/c/c6f035044104c6ff656f4565cd22938dc892528c
- https://git.kernel.org/stable/c/da7936518996d290e2fcfcaf6cd7e15bfd87804a
- https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html
- https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html