CVE-2026-78133

high

Description

libcharon in strongSwan 6.0.0 through 6.0.7 has a use-after-free in IKEv2 rekeying collision handling.

References

https://www.strongswan.org/blog/2026/09/07/strongswan-vulnerability-(cve-2026-78133).html

https://github.com/strongswan/strongswan/releases/tag/6.1.0

Details

Source: Mitre, NVD

Published: 2026-09-11

Updated: 2026-09-14

Risk Information

CVSS v2

Base Score: 7.1

Vector: CVSS2#AV:N/AC:H/Au:S/C:C/I:C/A:C

Severity: High

CVSS v3

Base Score: 7.5

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

Severity: High

EPSS

EPSS: 0.00417