CVE-2026-14957: FIPS mode assertion failure via malicious CERT payload

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-Sep

Released

2026-09-03

Last Updated

2026-09-19

EPSS Score

0.47% (percentile: 39.1%)

Affected Products (1)

Open Source Software

• azl3 libreswan 4.15-2 on Azure Linux 3.0

Security Updates (1)

• Security Update

Revision History

• 2026-09-03: Information published.
• 2026-09-16: Information published.
• 2026-09-19: Information published.