Glib: glib: buffer underflow in gvariant parser leads to heap corruption
CVE-2025-14087

5.6MEDIUM

Key Information:

Vendor: Red Hat
Status: Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 6; Red Hat Enterprise Linux 7; Red Hat Enterprise Linux 8
Vendor: CVE Published:; 10 December 2025

What is CVE-2025-14087?

A flaw was found in GLib (Gnome Lib). This vulnerability allows a remote attacker to cause heap corruption, leading to a denial of service or potential code execution via a buffer-underflow in the GVariant parser when processing maliciously crafted input strings.

References

https://access.redhat.com/security/cve/CVE-2025-14087

vdb-entryx_refsource_REDHAT

https://bugzilla.redhat.com/show_bug.cgi?id=2419093

issue-trackingx_refsource_REDHAT

CVSS V3.1

Score:

5.6

Severity:

MEDIUM

Confidentiality:

Low

Integrity:

Low

Availability:

Low

Attack Vector:

Network

Attack Complexity:

High

Privileges Required:

None

User Interaction:

None

Scope:

Unchanged

Download the Critical Vulnerability Management Cheat Sheet

Timeline

Vulnerability published
Dec 10, 2025
Vulnerability Reserved
Dec 5, 2025

Credit

Red Hat would like to thank Sovereign Tech Resilience program (Sovereign Tech Agency) and treeplus for reporting this issue.

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