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CVE-2026-34085

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CVE-2026-34085

Published: Mar 25, 2026

Modified: Apr 2, 2026

PUBLISHED

CVSS v3.1

5.9

MEDIUM

Description

fontconfig before 2.17.1 has an off-by-one error in allocation during sfnt capability handling, leading to a one-byte out-of-bounds write, and potentially a crash or code execution. This is in FcFontCapabilities in fcfreetype.c.

VendorProductVersions

fontconfig project

fontconfig

affected
0 - < 2.17.1

Weaknesses (CWE)

CVSS v3.1 Details

CVSS v3.1 Vector

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

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

Low

Availability

Low

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