CVE-2026-16118

HIGH
MEDIUM Priority: 0.02 BB Relevance: 39/100
Published: 2026-07-17 Modified: 2026-10-29 First seen: 2026-10-29 Status: active

Attack Surface

Low Complexity No Auth Integ. Impact

CVSS Vector Breakdown

AV: Local
AC: Low
PR: None
UI: Required
S: Unchanged
C: None
I: High
A: High

Description

A flaw was found in xdgmime. A heap-based buffer overflow can be triggered in _xdg_mime_magic_parse_magic_line() in the xdgmimemagic.c file on little-endian systems when an attacker-controlled MIME magic file in a user-writable XDG data location (e.g., in the $XDG_DATA_HOME/mime/magic path) is parsed by an application performing MIME type detection (e.g., via g_content_type_guess()). When performing byte-swap, incorrect pointer arithmetic on the write side causes an out-of-bounds write of 2 bytes, resulting in an application crash or memory corruption.

Weakness Classification (1)

References & Advisories (77)

https://access.redhat.com/errata/RHSA-2026:64799
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:64800
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:66451
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:67956
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:70636
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:71403
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:71404
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:71405
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:72394
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:72395
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:72399
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:72470
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:72475
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:72476
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:72502
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:73859
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:73909
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:73929
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:73930
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:73959
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:73960
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:73961
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:73962
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:74359
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:74360
vendor-advisory x_refsource_REDHAT
Showing 25 of 77 references

Bug Bounty Relevance

39 / 100
✓ No authentication
✓ Low complexity

CVSS Score

7.1 / 10.0 v3.1
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H

EPSS — Exploitation Probability

0.22%
Raw Score 0.002220
Percentile 12.8%
Date 2026-10-29

Intelligence Sources

mitre ref →
nvd ref →