CVE-2026-54774: CoreWCF: SamlSerializer skips SignatureValue verification when SAML signing token is not an X.509 certificate
HIGH
CVSS 7.4
Exploit Available
Published: June 19, 2026 | Last Modified: June 19, 2026
Description
CoreWCF: SamlSerializer skips SignatureValue verification when SAML signing token is not an X.509 certificate
Ghostwire Analysis — What This Means Practically
- High CVSS score indicates significant risk — exploitation could lead to substantial data exposure or system compromise.
- Exploit code is reported to be available, increasing the likelihood of active exploitation.
This analysis is generated by Ghostwire from NVD, CISA KEV, EPSS, and open-source intelligence data. Verify findings through primary sources before acting.
Security Coverage (1 articles)
References