CVE-2026-78133
libcharon in strongSwan 6.0.0 through 6.0.7 has a use-after-free in IKEv2 rekeying collision handling.
CVE-2026-78133 is fixed in 14 products on 1 platform, first by charon-cmd 6.0.4-1ubuntu3.2, released September 7, 2026. It is not reported as exploited. Patch Radar priority: High.
High
CVSS
7.5
Moderate
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0047
40th percentile
libcharon in strongSwan 6.0.0 through 6.0.7 has a use-after-free in IKEv2 rekeying collision handling.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| charon-cmd · Ubuntu 26.04.1 LTS (resolute) | 6.0.4-1ubuntu3.2 | charon-cmd 6.0.4-1ubuntu3.2 | Sep 7, 2026 |
| charon-systemd · Ubuntu 26.04.1 LTS (resolute) | 6.0.4-1ubuntu3.2 | charon-systemd 6.0.4-1ubuntu3.2 | Sep 7, 2026 |
| libcharon-extauth-plugins · Ubuntu 26.04.1 LTS (resolute) | 6.0.4-1ubuntu3.2 | libcharon-extauth-plugins 6.0.4-1ubuntu3.2 | Sep 7, 2026 |
| libcharon-extra-plugins · Ubuntu 26.04.1 LTS (resolute) | 6.0.4-1ubuntu3.2 | libcharon-extra-plugins 6.0.4-1ubuntu3.2 | Sep 7, 2026 |
| libstrongswan · Ubuntu 26.04.1 LTS (resolute) | 6.0.4-1ubuntu3.2 | libstrongswan 6.0.4-1ubuntu3.2 | Sep 7, 2026 |
| libstrongswan-extra-plugins · Ubuntu 26.04.1 LTS (resolute) | 6.0.4-1ubuntu3.2 | libstrongswan-extra-plugins 6.0.4-1ubuntu3.2 | Sep 7, 2026 |
| libstrongswan-standard-plugins · Ubuntu 26.04.1 LTS (resolute) | 6.0.4-1ubuntu3.2 | libstrongswan-standard-plugins 6.0.4-1ubuntu3.2 | Sep 7, 2026 |
| strongswan · Debian 13.5 (trixie) | 6.0.1-6+deb13u7 | DEBIAN-CVE-2026-78133 | Sep 8, 2026 |
| strongswan · Debian 14 | 6.1.0-1 | DEBIAN-CVE-2026-78133 | Sep 8, 2026 |
| strongswan · Ubuntu 26.04.1 LTS (resolute) | 6.0.4-1ubuntu3.2 | strongswan 6.0.4-1ubuntu3.2 | Sep 7, 2026 |
| strongswan · opensuse-leap 16.0 | 6.0.6-160000.3.1 | OPENSUSE-SU-2026:22050-1 | Nov 7, 2026 |
| strongswan · sles 16.0 | 6.0.6-160000.3.1 | SUSE-SU-2026:24199-1 | Nov 7, 2026 |
| strongswan-charon · Ubuntu 26.04.1 LTS (resolute) | 6.0.4-1ubuntu3.2 | strongswan-charon 6.0.4-1ubuntu3.2 | Sep 7, 2026 |
| strongswan-libcharon · Ubuntu 26.04.1 LTS (resolute) | 6.0.4-1ubuntu3.2 | strongswan-libcharon 6.0.4-1ubuntu3.2 | Sep 7, 2026 |
| strongswan-nm · Ubuntu 26.04.1 LTS (resolute) | 6.0.4-1ubuntu3.2 | strongswan-nm 6.0.4-1ubuntu3.2 | Sep 7, 2026 |
| strongswan-pki · Ubuntu 26.04.1 LTS (resolute) | 6.0.4-1ubuntu3.2 | strongswan-pki 6.0.4-1ubuntu3.2 | Sep 7, 2026 |
| strongswan-starter · Ubuntu 26.04.1 LTS (resolute) | 6.0.4-1ubuntu3.2 | strongswan-starter 6.0.4-1ubuntu3.2 | Sep 7, 2026 |
| strongswan-swanctl · Ubuntu 26.04.1 LTS (resolute) | 6.0.4-1ubuntu3.2 | strongswan-swanctl 6.0.4-1ubuntu3.2 | Sep 7, 2026 |
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