CVE-2025-4373
4.8
MEDIUM
CVSS 3.1
EPSS 0.74%
Description
A flaw was found in GLib, which is vulnerable to an integer overflow in the g_string_insert_unichar() function. When the position at which to insert the character is large, the position will overflow, leading to a buffer underwrite.
How to fix CVE-2025-4373
To remediate CVE-2025-4373, upgrade the affected package to a fixed version below.
- Debian/glib2.0—upgrade to 2.66.8-1+deb11u7 or later
Is CVE-2025-4373 being exploited?
Low — EPSS is 0.7%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 2.66.8-1+deb11u7
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM4.8 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L |