HIGH
CVE-2026-78133
CVSS v3
7.5
HIGH
EPSS Score
0.4 %
exploit probability, as of 2026-09-29
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
libcharon in strongSwan 6.0.0 through 6.0.7 has a use-after-free in IKEv2 rekeying collision handling.
Technical details
- Published
- 2026-09-11
- Last Modified
- 2026-09-11
Frequently asked questions
What is CVE-2026-78133?
libcharon in strongSwan 6.0.0 through 6.0.7 has a use-after-free in IKEv2 rekeying collision handling.
Is CVE-2026-78133 actively exploited?
Active exploitation of CVE-2026-78133 has not been confirmed. Its EPSS score was 0.4% on 2026-09-29, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2026-78133?
CVE-2026-78133 has a CVSS v3 base score of 7.5 (HIGH severity).
Is CVE-2026-78133 affecting your environment?
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