MEDIUM 5.6 Microsoft
CVE-2026-78135
libcharon in strongSwan 5.9.7 through 6.0.7 mishandles behavioral workflow in the IKEv2 state machine. Because CREATE_CHILD_SA requests are mishandled, there can be an authentication bypass.
Microsoft Security Update 2026-Sep: libcharon in strongSwan 5.9.7 through 6.0.7 mishandles behavioral workflow in the IKEv2 state machine. Because CREATE_CHILD_SA requests are mishandled, there can be an authentication bypass.
Affected Products
- azl3 strongswan 5.9.14-10 on Azure Linux 3.0
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-78135
- https://nvd.nist.gov/vuln/detail/CVE-2026-78135
This medium severity vulnerability with a CVSS score of 5.6 was published on 2026-09-08 via Microsoft. Affected: azl3 strongswan 5.9.14-10 on Azure Linux 3.0.
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