CVE-2026-78133
highlibcharon in strongSwan 6.0.0 through 6.0.7 has a use-after-free in IKEv2 rekeying collision handling.
Vendor / product: Strongswan — strongswan
libcharon in strongSwan 6.0.0 through 6.0.7 has a use-after-free in IKEv2 rekeying collision handling.
CVSS
7.5
7.5 (CVSS v3.1)
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H Severity source: NVD CVSS v3.1 (cve@mitre.org)
Timeline (UTC)
Published: 2026-09-11 02:18
Modified: 2026-09-14 20:07
NVD status: Analyzed
Last synced 1 day ago
Verified against the source API 2026-10-27 06:52 UTC
Exploitation
Not listed in CISA KEV (as of last catalog sync)
Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).
Affected products
strongswan / strongswan ≥6.0.0 <6.1.0
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
Vendor advisory: https://github.com/strongswan/strongswan/releases/tag/6.1.0
Vendor advisory: https://www.strongswan.org/blog/2026/09/07/strongswan-vulnerability-(cve-2026-78133).html
Patch / mitigation: https://github.com/strongswan/strongswan/releases/tag/6.1.0
References
Data sources
NVD CVE API 2.0 — fetched 2026-10-27 06:52 UTC · record ↗