CVE-2025-11935 - CVE House
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Status published Medium CVE-2025-11935

Forward Secrecy Violation in WolfSSL TLS 1.3

Vulnerability Description

With TLS 1.3 pre-shared key (PSK) a malicious or faulty server could ignore the request for PFS (perfect forward secrecy) and the client would continue on with the connection using PSK without PFS. This happened when a server responded to a ClientHello containing psk_dhe_ke without a key_share extension. The re-use of an authenticated PSK connection that on the clients side unexpectedly did not have PFS, reduces the security of the connection.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

  • Jaehun Lee, Pohang University of Science and Technology (POSTECH)
  • Kyungmin Bae, Pohang University of Science and Technology (POSTECH)

References

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Affected Vendor

Affected Software

wolfSSL
Vulnerable Versions:
3.12.0

Timeline

Official Publish: November 21st, 2025
Last Modified: December 8th, 2025
Added to House: July 22nd, 2026

CVSS Vectors

Weaknesses (CWE)

CWE-326

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.