CVEvulnerability

CVE-2026-77205

3.7 LOW Published 2026-10-13 Modified 2026-10-16 Official page ↗
Status
Awaiting Analysis
Published
2026-10-13
Last modified
2026-10-16
Assigner
d42dc95b-23f1-4e06-9076-20753a0fb0df
CVSS 3.1 (d42dc95b-23f1-4e06-9076-20753a0fb0df)
3.7 LOW — CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
Weaknesses
CWE-772

Description

Libreswan in FIPS mode has a vulnerability where badly formed received certificates are rejected, but not deleted from the NSS cache. As a result, any real certificates with the same serial number are rejected as well. This can be abused to lock out legitimate peers from connecting. The add_decoded_cert() function missed a call to CERT_DestroyCertificate() due to an incorrect fix for CVE-2026-14957. Sending bogus certificates with new serial numbers could prevent the real certificates with those serial numbers from connecting until the service has restarted.

Related

Weakness · CWE (1)

  • CWE-772 Missing Release of Resource after Effective Lifetime weakness

References