CVE-2026-89726: lib/ucs2_string.c: fix out-of-bounds read in ucs2_strnlen()

Overview

Severity

Medium (CVSS 4.4)

CVSS Vector

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

Exploit Status

Not Exploited

Patch Tuesday

2026-Sep

Released

2026-09-13

Last Updated

2026-10-02

EPSS Score

0.18% (percentile: 7.3%)

Affected Products (2)

Open Source Software

• azl3 kernel 6.6.150.1-1 on Azure Linux 3.0
• azl3 kernel 6.6.152.1-1 on Azure Linux 3.0

Security Updates (1)

• Security Update

Revision History

• 2026-09-13: Information published.
• 2026-09-14: Information published.
• 2026-09-23: Information published.
• 2026-09-23: Information published.
• 2026-10-02: Information published.