CVE-2025-21687
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%
14.5th percentile
CISA KEV
Not listed
Weakness / dates
CWE-125
Published 2025-02-10 · 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
- 2025-02-10 — Published (NVD)
- 2026-07-30 — Last modified (NVD)
Description
In the Linux kernel, the following vulnerability has been resolved: vfio/platform: check the bounds of read/write syscalls count and offset are passed from user space and not checked, only offset is capped to 40 bits, which can be used to read/write out of bounds of the device.
Affected
References
- https://git.kernel.org/stable/c/1485932496a1b025235af8aa1e21988d6b7ccd54
- https://git.kernel.org/stable/c/665cfd1083866f87301bbd232cb8ba48dcf4acce
- https://git.kernel.org/stable/c/6bcb8a5b70b80143db9bf12dfa7d53636f824d53
- https://git.kernel.org/stable/c/92340e6c5122d823ad064984ef7513eba9204048
- https://git.kernel.org/stable/c/9377cdc118cf327248f1a9dde7b87de067681dc9
- https://git.kernel.org/stable/c/a20fcaa230f7472456d12cf761ed13938e320ac3
- https://git.kernel.org/stable/c/c981c32c38af80737a2fedc16e270546d139ccdd
- https://git.kernel.org/stable/c/ce9ff21ea89d191e477a02ad7eabf4f996b80a69
- https://git.kernel.org/stable/c/d19a8650fd3d7aed8d1af1d9a77f979a8430eba1
- https://git.kernel.org/stable/c/ed81d82bb6e9df3a137f2c343ed689e6c68268ef
- https://git.kernel.org/stable/c/f21636f24b6786c8b13f1af4319fa75ffcf17f38
- https://git.kernel.org/stable/c/f65ce06387f8c1fb54bd59e18a8428248ec68eaf
- https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html
- https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html