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CVE-2025-13601

Gnome Glib integer overflow

7.7 HIGHPublic exploitEPSS 0.32%
  1. Published26 Nov 2025

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.

CVSS 3.1 breakdown

Attack vectorLocal
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityNone
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

Affected products

Gnome Glib< 2.86.3
Redhat Ceph Storage8.0
Redhat Codeready Linux Builder9.0
Redhat Codeready Linux Builder For Arm6410.0 · 8.0 · 9.6
Redhat Codeready Linux Builder For Arm64 Eus10.0 · 9.4
Redhat Codeready Linux Builder For Ibm Z Systems10.0_s390x · 8.0_s390x · 9.0_s390x · 9.4_s390x
Redhat Codeready Linux Builder For Ibm Z Systems Eus10.0_s390x
Redhat Codeready Linux Builder For Power Little Endian10.0_ppc64le · 8.0_ppc64le · 9.0_ppc64le · 9.4_ppc64le
Redhat Codeready Linux Builder For Power Little Endian Eus10.0_ppc64le
Redhat Codeready Linux Builder For X86 6410.0 · 8.0 · 9.0 · 9.4
Redhat Codeready Linux Builder For X86 64 Eus10.0
Redhat Discovery2.0
Redhat Openshift Container Platform4.12 · 4.16 · 4.17 · 4.18
Redhat Openshift Container Platform For Arm644.12 · 4.16 · 4.17 · 4.18
Redhat Openshift Container Platform For Ibm Z4.12 · 4.16 · 4.17 · 4.18
Redhat Openshift Container Platform For Linuxone4.12 · 4.16 · 4.17 · 4.18
Redhat Openshift Container Platform For Power4.12 · 4.16 · 4.17 · 4.18
Redhat Enterprise Linux For Arm 6410.0 · 8.0 · 9.0 · 9.2
Redhat Enterprise Linux For Arm 64 Eus10.0
Redhat Enterprise Linux For Ibm Z Systems10.0_s390x · 8.0_s390x · 9.0_s390x · 9.2_s390x
Redhat Enterprise Linux For Ibm Z Systems Eus10.0_s390x
Redhat Enterprise Linux For Power Little Endian10.0_ppc64le · 8.0_ppc64le · 9.0_ppc64le · 9.2_ppc64le
Redhat Enterprise Linux For Power Little Endian Eus10.0_ppc64le · 9.6_ppc64le
Redhat Enterprise Linux For X86 6410.0 · 8.0 · 8.6 · 8.8

Remediation

Fixed in
Gnome Glib≥ 2.86.3

References

and 23 more references

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Frequently asked

Is CVE-2025-13601 being actively exploited?

CVE-2025-13601 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 0.32%.

How severe is CVE-2025-13601?

CVE-2025-13601 has a CVSS 3.1 base score of 7.7, rated high. EPSS estimates a 0.32% probability of exploitation.

Which products are affected by CVE-2025-13601?

Affected products include Gnome Glib, Redhat Ceph Storage, Redhat Codeready Linux Builder, Redhat Codeready Linux Builder For Arm64, Redhat Codeready Linux Builder For Arm64 Eus, and 19 more.

How do I fix CVE-2025-13601?

Upgrade affected software to a fixed version, for example Gnome Glib 2.86.3 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2025-13601 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.