CVE-2025-13601
HIGH severity · CVSS 7.7 · Integer overflow
7.7CVSS HIGH
Summary
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 escaping), the calculation of the length of the escaped string could overflow, leading to a potential write off the end of the newly allocated string.
Impact & exploitability
Attack vectorLocal
Attack complexityLow
Privileges requiredNone
User interactionNone
Confidentiality impactNone
Integrity impactHigh
Availability impactHigh
Exploit probability (EPSS)0%
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
Affected products we track (1)
Recommendation
Apply the vendor fix promptly. Open any affected product above for its exact safe version.
Additional information
- NVD record
- https://access.redhat.com/errata/RHSA-2026:0936Advisory
- https://access.redhat.com/errata/RHSA-2026:0975Advisory
- https://access.redhat.com/errata/RHSA-2026:0991Advisory
- https://access.redhat.com/errata/RHSA-2026:1323Advisory
- https://access.redhat.com/errata/RHSA-2026:1324Advisory
- https://access.redhat.com/errata/RHSA-2026:1326Advisory
- https://access.redhat.com/errata/RHSA-2026:1327Advisory
- https://access.redhat.com/errata/RHSA-2026:1465Advisory