4.8 Medium

A flaw was found in GLib, which is vulnerable to an integer overflow in the gstringinsertunichar() function.

CVE-2025-4373

A flaw was found in GLib, which is vulnerable to an integer overflow in the gstringinsertunichar() function. When the position at which to insert the character is large, the position will overflow, leading to a buffer underwrite.

Assessment

CVSS: 4.8 (v3.1)
Severity: Medium
EPSS: 0.64% chance of exploitation in the next 30 days
Known exploited: Not listed in CISA KEV
Exploit availability: Nothing found in Exploit-DB, Metasploit, Nuclei or public PoC repositories
Published: 6 May 2025
Last updated: 1 November 2026
Affected: Red Hat
Assigner: redhat

CVSS vectorCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L

At the source

EUVD (ENISA)

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