CVE-2026-12413 Affecting libreswan-minimal package, versions <0:5.3.2-1.el10_2


Severity

Recommended
high

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.6% (46th percentile)

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  • Snyk IDSNYK-ORACLE10-LIBRESWANMINIMAL-18370210
  • published28 Jul 2026
  • disclosed2 Jul 2026

Introduced: 2 Jul 2026

CVE-2026-12413  (opens in a new tab)

How to fix?

Upgrade Oracle:10 libreswan-minimal to version 0:5.3.2-1.el10_2 or higher.
This issue was patched in ELSA-2026-46398.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libreswan-minimal package and not the libreswan-minimal package as distributed by Oracle. See How to fix? for Oracle:10 relevant fixed versions and status.

An invalidly formatted IKEv2 fragment causes the Libreswan pluto daemon to crash and restart. Continued exploitation would cause a denial of service. The function reassemble_v2_incoming_fragments() would ignore unknown outer payloads but still store these in a fixed size array msg_digest.digest[PAYLIMIT]. An off-by-one error in the assertion PASSERT(logger, md->digest_roof < elemsof(md->digest)) causes the daemon to abort. No remote code execution is possible. Any configuration that allows IKEv2 connections that do not set fragmentation=no are vulnerable. IKEv1 is not affected.

CVSS Base Scores

version 3.1