Red Hat Security Advisory: spice-client-win security update
A security vulnerability (CVE-2025-27363) affecting the spice-client MSI installers for Windows clients in Red Hat Enterprise Linux 8. 4 has been identified. The issue involves an out-of-bounds (OOB) write in the freetype library when parsing font subglyph structures related to TrueType GX and variable font files. Red Hat has issued an important security advisory and provided updated packages to address this vulnerability. No known exploits are reported in the wild at this time.
AI Analysis
Technical Summary
The vulnerability CVE-2025-27363 is an out-of-bounds write (CWE-787) occurring in the freetype component used by spice-client-win MSI installers for Windows clients on Red Hat Enterprise Linux 8.4 variants. This flaw arises during the parsing of font subglyph structures related to TrueType GX and variable font files, potentially leading to memory corruption. Red Hat has released updated spice-client-win packages to fix this issue as detailed in advisory RHSA-2025:8253.
Potential Impact
The vulnerability could allow an attacker to cause memory corruption via crafted font files, which may lead to application instability or potential code execution depending on exploitation. However, no known exploits in the wild have been reported. The security impact is rated as Important by Red Hat, indicating a significant but not critical threat level.
Mitigation Recommendations
Red Hat has provided updated spice-client-win packages that fix this vulnerability. Users should apply the security update as described in Red Hat advisory RHSA-2025:8253 and the referenced article https://access.redhat.com/articles/11258. Since this is an on-premises product, administrators must manually update affected systems. Patch status is confirmed as available.
Red Hat Security Advisory: spice-client-win security update
Description
A security vulnerability (CVE-2025-27363) affecting the spice-client MSI installers for Windows clients in Red Hat Enterprise Linux 8. 4 has been identified. The issue involves an out-of-bounds (OOB) write in the freetype library when parsing font subglyph structures related to TrueType GX and variable font files. Red Hat has issued an important security advisory and provided updated packages to address this vulnerability. No known exploits are reported in the wild at this time.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability CVE-2025-27363 is an out-of-bounds write (CWE-787) occurring in the freetype component used by spice-client-win MSI installers for Windows clients on Red Hat Enterprise Linux 8.4 variants. This flaw arises during the parsing of font subglyph structures related to TrueType GX and variable font files, potentially leading to memory corruption. Red Hat has released updated spice-client-win packages to fix this issue as detailed in advisory RHSA-2025:8253.
Potential Impact
The vulnerability could allow an attacker to cause memory corruption via crafted font files, which may lead to application instability or potential code execution depending on exploitation. However, no known exploits in the wild have been reported. The security impact is rated as Important by Red Hat, indicating a significant but not critical threat level.
Mitigation Recommendations
Red Hat has provided updated spice-client-win packages that fix this vulnerability. Users should apply the security update as described in Red Hat advisory RHSA-2025:8253 and the referenced article https://access.redhat.com/articles/11258. Since this is an on-premises product, administrators must manually update affected systems. Patch status is confirmed as available.
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
- Additional Cves
- []
- Cvss Version
- null
Threat ID: 6a1f4e89e29bf47b50083143
Added to database: 6/2/2026, 9:43:37 PM
Last enriched: 6/2/2026, 10:17:00 PM
Last updated: 6/3/2026, 5:09:08 AM
Views: 2
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