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{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Mbed TLS", "vendor": "TrustedFirmware", "versions": [{"lessThan": "3.6.7", "status": "affected", "version": "3.5.0", "versionType": "semver"}, {"lessThan": "4.1.2", "status": "affected", "version": "4.0.0", "versionType": "semver"}]}], "source": "cve@mitre.org"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In Mbed TLS 3.6.x before 3.6.7 and 4.1.x before 4.1.2, the TLS 1.3 client accepts HelloRetryRequest selecting an unadvertised group."}], "id": "CVE-2026-25832", "lastModified": "2026-09-14T07:17:16.490", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 3.7, "baseSeverity": "LOW", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 2.2, "impactScore": 1.4, "source": "cve@mitre.org", "type": "Secondary"}]}, "published": "2026-09-14T07:17:16.490", "references": [{"source": "cve@mitre.org", "url": "https://mbed-tls.readthedocs.io/en/latest/security-advisories/"}, {"source": "cve@mitre.org", "url": "https://mbed-tls.readthedocs.io/en/latest/security-advisories/mbedtls-security-advisory-2026-07-tls13-hrr-unadvertised-group/"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-669"}], "source": "cve@mitre.org", "type": "Primary"}]}

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{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[3.5.0,3.6.7)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[4.0.0,4.1.2)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "Mbed TLS", "source": "cna", "vendor": "TrustedFirmware"}, "product": "mbed_tls", "vendor": "trustedfirmware"}], "created": "2026-09-14T08:30:17.752170+00:00", "updated": "2026-09-14T08:30:17.752198+00:00", "vendors": ["trustedfirmware", "trustedfirmware$PRODUCT$mbed_tls"]}