{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-12888","assignerOrgId":"50d2cd11-d01a-48ed-9441-5bfce9d63b27","state":"PUBLISHED","assignerShortName":"wolfSSL","dateReserved":"2025-11-07T17:36:11.128Z","datePublished":"2025-11-21T22:50:30.510Z","dateUpdated":"2025-12-08T15:51:56.735Z"},"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"wolfSSL","vendor":"wolfSSL","versions":[{"lessThan":"5.8.4","status":"affected","version":"0","versionType":"git"}]}],"credits":[{"lang":"en","type":"finder","value":"Adrian Cinal"}],"descriptions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"Vulnerability in X25519 constant-time cryptographic implementations due to timing side channels introduced by compiler optimizations and CPU architecture limitations, specifically with the Xtensa-based ESP32 chips. If targeting Xtensa it is recommended to use the low memory implementations of X25519, which is now turned on as the default for Xtensa.<br><br>"}],"value":"Vulnerability in X25519 constant-time cryptographic implementations due to timing side channels introduced by compiler optimizations and CPU architecture limitations, specifically with the Xtensa-based ESP32 chips. If targeting Xtensa it is recommended to use the low memory implementations of X25519, which is now turned on as the default for Xtensa."}],"impacts":[{"capecId":"CAPEC-485","descriptions":[{"lang":"en","value":"CAPEC-485 Signature Spoofing by Key Recreation"}]}],"metrics":[{"cvssV4_0":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"HIGH","attackRequirements":"PRESENT","attackVector":"PHYSICAL","baseScore":1,"baseSeverity":"LOW","exploitMaturity":"NOT_DEFINED","privilegesRequired":"LOW","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"LOW","subIntegrityImpact":"LOW","userInteraction":"NONE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:P/AC:H/AT:P/PR:L/UI:N/VC:L/VI:N/VA:N/SC:L/SI:L/SA:N","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"LOW","vulnIntegrityImpact":"NONE","vulnerabilityResponseEffort":"NOT_DEFINED"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-203","description":"CWE-203 Observable Discrepancy","lang":"en","type":"CWE"}]}],"providerMetadata":{"orgId":"50d2cd11-d01a-48ed-9441-5bfce9d63b27","shortName":"wolfSSL","dateUpdated":"2025-12-08T15:51:56.735Z"},"references":[{"url":"https://https://github.com/wolfSSL/wolfssl/pull/9275"}],"source":{"discovery":"UNKNOWN"},"title":"Constant Time Issue with Xtensa-based ESP32 and X22519","x_generator":{"engine":"Vulnogram 0.5.0"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2025-11-24T15:43:55.269754Z","id":"CVE-2025-12888","options":[{"Exploitation":"none"},{"Automatable":"no"},{"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":"2025-11-24T15:44:21.038Z"}}]}}