What is CVE-2026-78134?

CVE-2026-78134 is a security advisory published by Microsoft Security Response Center (MSRC) with High severity. strongSwan 4.5.0 through 6.0.7 has Incorrect Access Control in the eap-ttls and eap-peap plugins because there can be a missing or mismatched inner EAP identity.

Which CVE IDs does CVE-2026-78134 cover?

CVE-2026-78134 covers the following CVE IDs: CVE-2026-78134. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of CVE-2026-78134?

CVE-2026-78134 has a CVSS v3 base score of 7.1, published by Microsoft Security Response Center (MSRC).

Which products are affected by CVE-2026-78134?

CVE-2026-78134 affects 1 product, including: azl3 strongswan 5.9.14-10 on Azure Linux 3.0.

CVE-2026-78134HighCVSS 7.1

strongSwan 4.5.0 through 6.0.7 has Incorrect Access Control in the eap-ttls and eap-peap plugins because there can be a missing or mismatched inner EAP identity.

Vendor

Microsoft Security Response Center (MSRC)

Published

September 12, 2026

Last Modified

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🔗 CVE IDs covered (1)

CVE-2026-78134 →

🎯 Affected products1

azl3 strongswan 5.9.14-10 on Azure Linux 3.0

✅ Remediation

Security Update — fixed build 5.9.14-11

🔗 References (2)

advisoryhttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-78134
patchhttps://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade