CVE-2025-11935
Full vulnerability record from the local CVENow database.
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.
Severity
MEDIUM
CVSS score
6.3
(v4.0)
Vulnerability status
Analyzed
Source identifier
Published
2025-11-21 22:16:18.920000
Last modified
2026-10-19 13:10:00.110000
View original CVE JSON
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"id": "CVE-2025-11935",
"sourceIdentifier": "[email protected]",
"published": "2025-11-21T22:16:18.920",
"lastModified": "2026-10-19T13:10:00.110",
"vulnStatus": "Analyzed",
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"value": "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."
},
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"value": "Con la clave precompartida (PSK) de TLS 1.3, un servidor malicioso o defectuoso podría ignorar la solicitud de PFS (secreto hacia adelante perfecto) y el cliente continuaría con la conexión usando PSK sin PFS. Esto ocurrió cuando un servidor respondió a un ClientHello que contenía psk_dhe_ke sin una extensión key_share. La reutilización de una conexión PSK autenticada que del lado del cliente inesperadamente no tenía PFS, reduce la seguridad de la conexión."
}
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"affected": [
{
"source": "[email protected]",
"affectedData": [
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"product": "wolfSSL",
"defaultStatus": "unaffected",
"collectionURL": "https://www.wolfssl.com/download",
"packageName": "wolfssl",
"modules": [
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"source": "[email protected]",
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}