Vulnerability in Strongswan

CVE-2026-78132

strongSwan 5.1.3 through 6.0.7 has an infinite loop in the x509 plugin's attribute certificate parser for ietfAttrSyntax.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-78132?
CVE-2026-78132 is a high-severity vulnerability in Strongswan, classified under Loop with Unreachable Exit Condition (Infinite Loop). CVSS score: 7.5/10. Published 2026-09-11.
How severe is CVE-2026-78132?
High severity. CVSS v3 base score is 7.5 out of 10.