AUGUST 4, 2026
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Case File

CVE-2025-38556

HIGH · CVSS 7.1 EPSS 0.16%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2025-08-19 · Last synced 2026-08-04

CyberRota Analysis

This is a high severity vulnerability with a CVSS score of 7.1. It affects Linux.

CVE
CVE-2025-38556
Severity
HIGH
CVSS
7.1
EPSS
0.16%
Linux

Original NVD Description

In the Linux kernel, the following vulnerability has been resolved: HID: core: Harden s32ton() against conversion to 0 bits Testing by the syzbot fuzzer showed that the HID core gets a shift-out-of-bounds exception when it tries to convert a 32-bit quantity to a 0-bit quantity. Ideally this should never occur, but there are buggy devices and some might have a report field with size set to zero; we shouldn't reject the report or the device just because of that. Instead, harden the s32ton() routine so that it returns a reasonable result instead of crashing when it is called with the number of bits set to 0 -- the same as what snto32() does.

Related CVEs

Other vulnerabilities affecting the same vendor(s)