CVE-2026-1489

MEDIUM EPSS 24.3%

Published Jan 27, 20265mo ago · Modified Jun 17, 20261w ago

5.4 CVSS 3.1

Medium

Published Jan 27, 2026 5mo ago

Last Modified Jun 17, 2026 1w ago

Description

A flaw was found in GLib. An integer overflow vulnerability in its Unicode case conversion implementation can lead to memory corruption. By processing specially crafted and extremely large Unicode strings, an attacker could trigger an undersized memory allocation, resulting in out-of-bounds writes. This could cause applications utilizing GLib for string conversion to crash or become unstable.

CVSS Details

Base Score

5.4

Exploitability

2.8

Impact

2.5

Vector string

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L

Attack Vector Network

Attack Complexity Low

Privileges Required None

User Interaction Required

Scope Unchanged

Confidentiality None

Integrity Low

Availability Low

Threat Intelligence

EPSS Exploit Probability

24.3% percentile

Exploit & Patch Status

No Known Exploit

No Patch Available

Weaknesses 1

CWE-787 Out-of-bounds Write Memory Safety

References 4

access.redhat.com https://access.redhat.com/security/cve/CVE-2026-1489
bugzilla.redhat.com https://bugzilla.redhat.com/show_bug.cgi?id=2433348
cert-portal.siemens.com https://cert-portal.siemens.com/productcert/html/ssa-253495.html
gitlab.gnome.org https://gitlab.gnome.org/GNOME/glib/-/issues/3872

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.