Red Hat Security Advisory: glib2 security update
GLib provides the core application building blocks for libraries and applications written in C. It provides the core object system used in GNOME, the main loop implementation, and a large set of utility functions for strings and common data structures. Security Fix(es): * glib: GLib: Buffer underflow in GVariant parser leads to heap corruption (CVE-2025-14087) * glib: Integer Overflow in GLib GIO Attribute Escaping Causes Heap Buffer Overflow (CVE-2025-14512) 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
GLib, which provides essential application building blocks for C libraries and applications including the GNOME object system and utility functions, contains two vulnerabilities. CVE-2025-14087 is a buffer underflow in the GVariant parser that can cause heap corruption. CVE-2025-14512 is an integer overflow in the GIO attribute escaping functionality that results in a heap buffer overflow. Both vulnerabilities have been addressed in updated glib2 packages for Red Hat Enterprise Linux 10 and related distributions. The Red Hat advisory RHSA-2026:15969 provides detailed information and patches.
Potential Impact
Exploitation of these vulnerabilities could lead to heap corruption or heap buffer overflow conditions, potentially causing application crashes or memory corruption. The advisory rates the security impact as moderate. No known exploits are reported in the wild at this time.
Mitigation Recommendations
Red Hat has released updated glib2 packages for Red Hat Enterprise Linux 10 and related products that fix these vulnerabilities. Users should apply the security update as described in Red Hat advisory RHSA-2026:15969 and the referenced article https://access.redhat.com/articles/11258. Patch status is confirmed with official fixes available. No additional mitigation steps are indicated by the vendor.
Red Hat Security Advisory: glib2 security update
Description
GLib provides the core application building blocks for libraries and applications written in C. It provides the core object system used in GNOME, the main loop implementation, and a large set of utility functions for strings and common data structures. Security Fix(es): * glib: GLib: Buffer underflow in GVariant parser leads to heap corruption (CVE-2025-14087) * glib: Integer Overflow in GLib GIO Attribute Escaping Causes Heap Buffer Overflow (CVE-2025-14512) 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
GLib, which provides essential application building blocks for C libraries and applications including the GNOME object system and utility functions, contains two vulnerabilities. CVE-2025-14087 is a buffer underflow in the GVariant parser that can cause heap corruption. CVE-2025-14512 is an integer overflow in the GIO attribute escaping functionality that results in a heap buffer overflow. Both vulnerabilities have been addressed in updated glib2 packages for Red Hat Enterprise Linux 10 and related distributions. The Red Hat advisory RHSA-2026:15969 provides detailed information and patches.
Potential Impact
Exploitation of these vulnerabilities could lead to heap corruption or heap buffer overflow conditions, potentially causing application crashes or memory corruption. The advisory rates the security impact as moderate. No known exploits are reported in the wild at this time.
Mitigation Recommendations
Red Hat has released updated glib2 packages for Red Hat Enterprise Linux 10 and related products that fix these vulnerabilities. Users should apply the security update as described in Red Hat advisory RHSA-2026:15969 and the referenced article https://access.redhat.com/articles/11258. Patch status is confirmed with official fixes available. No additional mitigation steps are indicated by the vendor.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2026:15969
- Cve Count
- 2
- Additional Cves
- ["CVE-2025-14512"]
- Cvss Version
- null
Threat ID: 6a16097ee29bf47b5064a6a3
Added to database: 05/26/2026, 20:58:38 UTC
Last enriched: 07/14/2026, 10:53:45 UTC
Last updated: 07/31/2026, 19:22:53 UTC
Views: 54
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.