CVE-2025-11935
High
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.
SeverityHigh
CVSS7.5
Exploit probability—
ProductWolfssl
PublishedNov 21, 2025
First seenNov 21, 2025
Weakness typeCWE-326CWE-326
How to fix
Update
- wolfssl wolfssl5.8.4 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| wolfssl wolfssl | 5.8.2 ≤ v < 5.8.4 | 5.8.4 |
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