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HIGH

CVE-2025-13601

CVSS v3

7.7

HIGH

EPSS Score

0.3 %

exploit probability, as of 2026-10-19

CISA KEV

No

known exploited

Exploitation

—

SSVC status

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Affected and fixed versions

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • glib2AlmaLinux:10all versions · fixed in 2.80.4-10.el10_1.12and 4 other packages
  • glib2AlmaLinux:9all versions · fixed in 2.68.4-18.el9_7.1and 4 other packages
  • glib2AlmaLinux:8all versions · fixed in 2.56.4-168.el8_10and 5 other packages
  • mingw32-glib2AlmaLinux:10all versions · fixed in 2.87.0-1.el10and 3 other packages
  • mingw32-glib2AlmaLinux:9all versions · fixed in 2.78.6-3.el9and 3 other packages

Vendor advisories

  • CVE-2025-13601 Red Hat Product Security846 products fixed · 11 known affected

    glib: Integer overflow in in g_escape_uri_string()

    glib2 as a component of Red Hat Enterprise Linux 6 · glib2-devel as a component of Red Hat Enterprise Linux 6 · glib2-doc as a component of Red Hat Enterprise Linux 6

  • ICSA-26-188-05 CISA1 known affected

    Siemens SINEC OS

    RUGGEDCOM RST2428P (6GK6242-6PA00)

  • SSA-253495 Siemens ProductCERT1 known affected

    SSA-253495: Multiple Vulnerabilities in SINEC OS before V4.0

    RUGGEDCOM RST2428P (6GK6242-6PA00)

  • RHSA-2026:18705 Red Hat Product Security7 products fixed

    Red Hat Security Advisory: mingw-glib2 security update

  • RHSA-2026:18344 Red Hat Product Security7 products fixed

    Red Hat Security Advisory: mingw-glib2 security update

  • RHSA-2026:7461 Red Hat Product Security11 products fixed

    Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update

25 more advisories

Full record on NVD

Description

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.

Technical details

Published
2025-11-26

Frequently asked questions

What is 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 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.

Is CVE-2025-13601 actively exploited?

Active exploitation of CVE-2025-13601 has not been confirmed. Its EPSS score was 0.3% on 2026-10-19, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2025-13601?

CVE-2025-13601 has a CVSS v3 base score of 7.7 (HIGH severity).

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