{"id":"CVE-2026-78133","title":"libcharon in strongSwan 6.0.0 through 6.0.7 has a use-after-free in IKEv2 rekeying collision handling.","summary":"libcharon in strongSwan 6.0.0 through 6.0.7 has a use-after-free in IKEv2 rekeying collision handling.","severity":"high","cvss":7.5,"cvssVector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","cwe":["CWE-416"],"vendor":"strongswan","product":"strongswan","affected":["strongswan >= 6.0.0, < 6.1.0"],"patched":["strongswan 6.1.0"],"published":"2026-09-11","updated":"2026-09-14","sourceUpdated":"2026-09-14T20:07:44.490","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-78133","references":[{"url":"https://github.com/strongswan/strongswan/releases/tag/6.1.0","label":"cve@mitre.org"},{"url":"https://www.strongswan.org/blog/2026/09/07/strongswan-vulnerability-(cve-2026-78133).html","label":"cve@mitre.org"}],"tags":["nvd","cve.org"],"epss":0.00426,"epssPercentile":0.36519,"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-09-11T16:53:54.390946Z"},"ingestedAt":"2026-09-14T00:35:28.536Z","slug":"CVE-2026-78133","body":"## Overview\n\nlibcharon in strongSwan 6.0.0 through 6.0.7 has a use-after-free in IKEv2 rekeying collision handling.\n\n## Affected\n\n- `strongswan >= 6.0.0, < 6.1.0`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `strongswan 6.1.0`","depth":"twilight","depthScore":41,"depthScoreParts":{"impact":41.3,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}