CVE-2026-78133

HIGH CVSS 3.1: 7.5 EPSS 0.43%
Updated Sep 14, 2026
Strongswan
Parameter Value
CVSS 7.5 (HIGH)
Affected Versions 6.0.0 — 6.1.0
Fixed In 6.1.0
Type CWE-416 (Use After Free)
Vendor Strongswan
Public PoC No

libcharon in strongSwan 6.0.0 through 6.0.7 has a use-after-free in IKEv2 rekeying collision handling.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
High
Difficult to exploit
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
High
Complete data leak
Integrity
High
Complete data modification
Availability
High
Complete denial of service

CVSS Vector v3.1

Weakness Type (CWE)

Vulnerable Products 1

Configuration From (including) Up to (excluding)
Strongswan Strongswan
cpe:2.3:a:strongswan:strongswan:*:*:*:*:*:*:*:*
6.0.0 6.1.0