Red Hat Security Advisory: freetype security update
MinGW Windows Freetype library. Security Fix(es): * freetype: OOB write when attempting to parse font subglyph structures related to TrueType GX and variable font files (CVE-2025-27363) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
AI Analysis
Technical Summary
CVE-2025-27363 is an out-of-bounds (OOB) write vulnerability in the FreeType font engine that occurs when parsing font subglyph structures related to TrueType GX and variable font files. This flaw could potentially lead to memory corruption. Red Hat has issued security advisories and updates to fix this vulnerability in multiple Red Hat Enterprise Linux versions, including 8.2 AUS and 9.4 Extended Update Support. The vulnerability is tracked under CWE-787 (Out-of-bounds Write).
Potential Impact
The vulnerability allows an out-of-bounds write during font parsing, which could cause memory corruption. Red Hat rates the security impact as Important (high severity). There are no known exploits in the wild at this time. The impact could potentially affect any application or service using the vulnerable FreeType library to process maliciously crafted font files.
Mitigation Recommendations
Red Hat has released security updates that fix this vulnerability in affected FreeType packages for Red Hat Enterprise Linux 8.2 AUS, 9.4 Extended Update Support, and related variants. Users should apply the provided updates as detailed in the Red Hat advisories (RHSA-2025:3383 and RHSA-2025:3393) and the referenced article https://access.redhat.com/articles/11258. No additional mitigation steps are indicated beyond applying these official patches.
Red Hat Security Advisory: freetype security update
Description
MinGW Windows Freetype library. Security Fix(es): * freetype: OOB write when attempting to parse font subglyph structures related to TrueType GX and variable font files (CVE-2025-27363) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2025-27363 is an out-of-bounds (OOB) write vulnerability in the FreeType font engine that occurs when parsing font subglyph structures related to TrueType GX and variable font files. This flaw could potentially lead to memory corruption. Red Hat has issued security advisories and updates to fix this vulnerability in multiple Red Hat Enterprise Linux versions, including 8.2 AUS and 9.4 Extended Update Support. The vulnerability is tracked under CWE-787 (Out-of-bounds Write).
Potential Impact
The vulnerability allows an out-of-bounds write during font parsing, which could cause memory corruption. Red Hat rates the security impact as Important (high severity). There are no known exploits in the wild at this time. The impact could potentially affect any application or service using the vulnerable FreeType library to process maliciously crafted font files.
Mitigation Recommendations
Red Hat has released security updates that fix this vulnerability in affected FreeType packages for Red Hat Enterprise Linux 8.2 AUS, 9.4 Extended Update Support, and related variants. Users should apply the provided updates as detailed in the Red Hat advisories (RHSA-2025:3383 and RHSA-2025:3393) and the referenced article https://access.redhat.com/articles/11258. No additional mitigation steps are indicated beyond applying these official patches.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2025:8253
- Cve Count
- 1
Threat ID: 6a1f4e89e29bf47b50083143
Added to database: 06/02/2026, 21:43:37 UTC
Last enriched: 08/11/2026, 20:22:28 UTC
Last updated: 09/10/2026, 19:36:49 UTC
Views: 73
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