CVE-2026-5928: Static buffer overflow in deprecated nis_local_principal

Overview

Severity

High (CVSS 7.5)

CVSS Vector

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

Exploit Status

Not Exploited

Patch Tuesday

2026-Apr

Released

2026-04-22

Last Updated

2026-09-25

EPSS Score

0.49% (percentile: 41.4%)

Affected Products (6)

Open Source Software

• cbl2 glibc 2.35-10 on CBL Mariner 2.0
• azl3 glibc 2.38-19 on Azure Linux 3.0

Other

• 21384-17084
• 20935
• 20935-21692
• 21824-17084

Security Updates (1)

• Security Update

Revision History

• 2026-04-22: Information published.
• 2026-04-22: Information published.
• 2026-04-23: Information published.
• 2026-06-03: Information published.
• 2026-08-09: Information published.
• 2026-09-07: Information published.
• 2026-09-09: Information published.
• 2026-09-13: Information published.
• 2026-09-25: Information published.