Integer overflow in Gnome Glib

CVE-2025-13601

A heap-based buffer overflow problem was found in glib through an incorrect calculation of buffer size in the g_escape_uri_string() function. If the string to escape contains a very large number of unacceptable characters (which would need…

Vulnerability class: Integer Overflow

EPSS: 0.000 (2.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.7 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2025-13601?
CVE-2025-13601 is a high-severity vulnerability in Gnome Glib, classified under Integer Overflow or Wraparound. CVSS score: 7.7/10. Published 2025-11-26.
How severe is CVE-2025-13601?
High severity. CVSS v3 base score is 7.7 out of 10.