CVE-2026-34085 (GCVE-0-2026-34085)
Vulnerability from cvelistv5 – Published: 2026-03-25 16:54 – Updated: 2026-04-02 17:50
VLAI?
Summary
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.
Severity ?
5.9 (Medium)
CWE
- CWE-193 - Off-by-one Error
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| fontconfig project | fontconfig |
Affected:
0 , < 2.17.1
(semver)
|
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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