MEDIUM CVSS 5.9
Published: 2026-08-01

CVE-2026-67294

Software Component Vulnerability Advisory (CWE-Not-Specified)
↗ Official NIST NVD Record
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CyberVault Technical Summary

Analyst Synthesis

Security vulnerability CVE-2026-67294 affecting Generic/Unknown Software Component. Evaluated with CVSS Base Score of 5.9 (MEDIUM).

Original NVD Description

Source: NIST NVD
FreeRDP before 3.29.0 improperly validates the Extended Key Usage (EKU) purpose of the peer certificate during client-side server TLS authentication. In x509_utils_verify(), when server-purpose (X509_PURPOSE_SSL_SERVER) verification fails, the code falls back to client-purpose and any-purpose verification, so a trusted, hostname-matching certificate valid only for clientAuth can be accepted as the RDP server certificate. In environments relying on EKU separation between client and server certificates, this allows a clientAuth-only certificate issued by a trusted CA to bypass server certificate purpose validation.

📊 CVSS v3.1 Metric Breakdown

🎯 Affected Versions Matrix

Affected Product Generic/Unknown / Software Component
Affected Versions Unspecified
Weakness Enumeration CWE-Not-Specified

🛡️ Remediation & Security Action

  • Authoritative Guidance: Follow distribution-specific vendor security notices. Advisory status and package patches vary by distribution release.
  • Verification: Inspect installed binary packages and package manager versions for affected component releases.
  • Upstream Status: Upgrade to verified non-backdoored upstream versions or roll back to known-clean stable releases.
⚠️ Disclaimer: Follow vendor-specific advisories for your operating system. CyberVault does not fabricate unsupported remediation scripts.

🔗 Verified Technical References

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Technical Analysis
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Risk Snapshot
5.9
MEDIUM SEVERITY
CVE ID CVE-2026-67294
Weakness CWE-Not-Specified
Vendor Generic/Unknown
Product Software Component
Published 2026-08-01
Vector N/A
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