{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-11935","assignerOrgId":"50d2cd11-d01a-48ed-9441-5bfce9d63b27","state":"PUBLISHED","assignerShortName":"wolfSSL","dateReserved":"2025-10-17T22:24:22.960Z","datePublished":"2025-11-21T22:04:52.335Z","dateUpdated":"2025-12-08T15:49:43.595Z"},"containers":{"cna":{"affected":[{"collectionURL":"https://www.wolfssl.com/download","defaultStatus":"unaffected","modules":["TLS"],"packageName":"wolfssl","platforms":["Linux","MacOS"],"product":"wolfSSL","programFiles":["src/tls13.c","src/tls.c","wolfssl/internal.h"],"repo":"https://github.com/wolfSSL/wolfssl","vendor":"wolfSSL","versions":[{"lessThan":"5.8.4","status":"affected","version":"3.12.0","versionType":"git"}]}],"credits":[{"lang":"en","type":"finder","value":"Jaehun Lee, Pohang University of Science and Technology (POSTECH)"},{"lang":"en","type":"coordinator","value":"Kyungmin Bae, Pohang University of Science and Technology (POSTECH)"}],"descriptions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","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&nbsp;<span style=\"background-color: rgb(255, 255, 255);\">server responded to a ClientHello containing psk_dhe_ke without a key_share extension.&nbsp;</span>The re-use of an authenticated PSK connection that on the clients side unexpectedly did not have PFS, reduces the security of the connection.<br><br>"}],"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."}],"impacts":[{"capecId":"CAPEC-94","descriptions":[{"lang":"en","value":"CAPEC-94 Adversary in the Middle (AiTM)"}]}],"metrics":[{"cvssV4_0":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"PRESENT","attackVector":"NETWORK","baseScore":6.3,"baseSeverity":"MEDIUM","exploitMaturity":"NOT_DEFINED","privilegesRequired":"NONE","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"LOW","subIntegrityImpact":"LOW","userInteraction":"NONE","valueDensity":"NOT_DEFINED","vectorString":"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","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"LOW","vulnIntegrityImpact":"LOW","vulnerabilityResponseEffort":"NOT_DEFINED"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-326","description":"CWE-326 Inadequate Encryption Strength","lang":"en","type":"CWE"}]}],"providerMetadata":{"orgId":"50d2cd11-d01a-48ed-9441-5bfce9d63b27","shortName":"wolfSSL","dateUpdated":"2025-12-08T15:49:43.595Z"},"references":[{"url":"https://github.com/wolfSSL/wolfssl"},{"url":"https://github.com/wolfSSL/wolfssl/pull/9112"}],"source":{"discovery":"UNKNOWN"},"title":"Forward Secrecy Violation in WolfSSL TLS 1.3","x_generator":{"engine":"Vulnogram 0.2.0"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2025-11-25T18:43:57.465371Z","id":"CVE-2025-11935","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2025-11-25T18:44:04.062Z"}}]}}