CVE-2025-38676

HIGH

Linux Kernel < 5.5 - Out-of-Bounds Write

Title source: rule

Description

In the Linux kernel, the following vulnerability has been resolved: iommu/amd: Avoid stack buffer overflow from kernel cmdline While the kernel command line is considered trusted in most environments, avoid writing 1 byte past the end of "acpiid" if the "str" argument is maximum length.

Exploits (1)

nomisec WORKING POC 1 stars

by 14mb1v45h · poc

https://github.com/14mb1v45h/CVE-2025-38676

View Code ZIP pw:eip

References (9)

[Patch] https://git.kernel.org/stable/c/0ad8509b468fa1058f4f400a1829f29e4ccc4de8

[Patch] https://git.kernel.org/stable/c/4bdb0f78bddbfa77d3ab458a21dd9cec495d317a

[Patch] https://git.kernel.org/stable/c/736db11c86f03e717fc4bf771d05efdf10d23acb

[Patch] https://git.kernel.org/stable/c/8503d0fcb1086a7cfe26df67ca4bd9bd9e99bdec

[Patch] https://git.kernel.org/stable/c/8f80c633cba144f721d38d9380f23d23ab7db10e

[Patch] https://git.kernel.org/stable/c/9ff52d3af0ef286535749e14e3fe9eceb39a8349

[Patch] https://git.kernel.org/stable/c/a732502bf3bbe859613b6d7b2b0313b11f0474ac

[Third Party Advisory] https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html

[Third Party Advisory] https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html

Scores

CVSS v3 7.8

EPSS 0.0002

EPSS Percentile 6.8%

Attack Vector LOCAL

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Details

CWE

CWE-787

Status published

Products (3)

debian/debian_linux 11.0

linux/linux_kernel 6.17 rc1 (2 CPE variants)

linux/linux_kernel 5.4.237 - 5.5

Published Aug 26, 2025

Tracked Since Feb 18, 2026