What’s Vulnerable › Vulnerabilities

CVE-2025-38495: HID: core: ensure the allocated report buffer can contain the reserved report ID

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-07-28 · updated 2026-07-30

Description

In the Linux kernel, the following vulnerability has been resolved: HID: core: ensure the allocated report buffer can contain the reserved report ID When the report ID is not used, the low level transport drivers expect the first byte to be 0. However, currently the allocated buffer not account for that extra byte, meaning that instead of having 8 guaranteed bytes for implement to be working, we only have 7.

Affected products

• Debian Linux: 11.0
• Linux kernel: from 3.15 before 5.4.297; from 5.5 before 5.10.241; from 5.11 before 5.15.190; from 5.16 before 6.1.147; from 6.2 before 6.6.100; from 6.7 before 6.12.40 — fixed in 5.10.241, 5.15.190, 5.4.297, 6.1.147, 6.12.40, 6.15.8

How to fix

Upgrade to a fixed version: Linux kernel 5.10.241, 5.15.190, 5.4.297, 6.1.147. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/4f15ee98304b96e164ff2340e1dfd6181c3f42aa
• https://git.kernel.org/stable/c/7228e36c7875e4b035374cf68ca5e44dffa596b2
• https://git.kernel.org/stable/c/7fa83d0043370003e9a0b46ab7ae8f53b00fab06
• https://git.kernel.org/stable/c/9f2892f7233a8f1320fe671d0f95f122191bfbcd
• https://git.kernel.org/stable/c/a262370f385e53ff7470efdcdaf40468e5756717
• https://git.kernel.org/stable/c/a47d9d9895bad9ce0e840a39836f19ca0b2a343a
• https://git.kernel.org/stable/c/d3ed1d84a84538a39b3eb2055d6a97a936c108f2
• https://git.kernel.org/stable/c/fcda39a9c5b834346088c14b1374336b079466c1
• https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html
• https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html

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