Vulnerability in Strongswan

CVE-2026-78127

libcharon in strongSwan 4.1.2 through 6.0.7 has a missing release of memory after its effective lifetime in the IKE message parser.

CVSS v3 metric

CVSS v3 base score 3.7 (Low). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-78127?
CVE-2026-78127 is a low-severity vulnerability in Strongswan, classified under Missing Release of Memory after Effective Lifetime. CVSS score: 3.7/10. Published 2026-09-11.
How severe is CVE-2026-78127?
Low severity. CVSS v3 base score is 3.7 out of 10.