CVE-2025-11935
MEDIUM EPSS 9.9%
Published Nov 21, 20257mo ago · Modified Jun 17, 20262w ago
6.3 CVSS 4.0
Published Nov 21, 2025 7mo ago
Last Modified Jun 17, 2026 2w ago
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.
CVSS Details
Base Score
Exploitability
Impact
Vector string
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope X
Threat Intelligence
EPSS Exploit Probability
9.9% percentile
Exploit & Patch Status
No Known Exploit
Patch Available
Weaknesses 1
CWE-326
Affected Products 3
References 2
- github.com https://github.com/wolfSSL/wolfssl
- github.com https://github.com/wolfSSL/wolfssl/pull/9112
Remediation
- github.com https://github.com/wolfSSL/wolfssl/pull/9112