CVE-2026-78133: libcharon in strongSwan 6.0.0 through 6.0.7 has a use-after-free in IKEv2 rekeying collision handling.

Overview

Severity

High (CVSS 7.5)

CVSS Vector

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

Exploit Status

Not Exploited

Patch Tuesday

2026-Sep

Released

2026-09-17

EPSS Score

0.43% (percentile: 36.3%)

Affected Products (1)

Other

• 21867-17084

Security Updates (1)

• Security Update

Revision History

• 2026-09-17: Information published.