CVE-2025-62514

{"id": "CVE-2025-62514", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8.3, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "LOW", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.5, "exploitabilityScore": 2.8}, {"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.1, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:L", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "LOW", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.5, "exploitabilityScore": 1.6}]}, "published": "2026-01-29T16:16:09.387", "references": [{"url": "https://github.com/Scille/parsec-cloud/blob/e7c5cdbc4234f606ccf3ab2be7e9edc22db16feb/libparsec/crates/crypto/src/rustcrypto/private.rs#L136-L138", "tags": ["Patch"], "source": "security-advisories@github.com"}, {"url": "https://github.com/Scille/parsec-cloud/commit/197bb6387b49fec872b5e4a04dcdb82b3d2995b2", "tags": ["Patch"], "source": "security-advisories@github.com"}, {"url": "https://github.com/Scille/parsec-cloud/security/advisories/GHSA-hrc9-gm58-pgj9", "tags": ["Exploit", "Vendor Advisory"], "source": "security-advisories@github.com"}, {"url": "https://github.com/dalek-cryptography/curve25519-dalek/blob/8c53a8f10b146a2fd65069437e3576e49b390e7a/curve25519-dalek/src/montgomery.rs#L132-L146", "tags": ["Patch"], "source": "security-advisories@github.com"}, {"url": "https://github.com/dalek-cryptography/curve25519-dalek/blob/8c53a8f10b146a2fd65069437e3576e49b390e7a/x25519-dalek/src/x25519.rs#L364-L366", "tags": ["Patch"], "source": "security-advisories@github.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-327"}, {"lang": "en", "value": "CWE-1240"}]}], "descriptions": [{"lang": "en", "value": "Parsec is a cloud-based application for cryptographically secure file sharing. In versions on the 3.x branch prior to 3.6.0, `libparsec_crypto`, a component of the Parsec application, does not check for weak order point of Curve25519 when compiled with its RustCrypto backend. In practice this means an attacker in a man-in-the-middle position would be able to provide weak order points to both parties in the Diffie-Hellman exchange, resulting in a high probability to for both parties to obtain the same shared key (hence leading to a successful SAS code exchange, misleading both parties into thinking no MITM has occurred) which is also known by the attacker. Note only Parsec web is impacted (as Parsec desktop uses `libparsec_crypto` with the libsodium backend). Version 3.6.0 of Parsec patches the issue."}], "lastModified": "2026-03-02T18:34:13.947", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:parsec.cloud:parsec:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "9D49E3B8-67B7-4237-8154-4131F8001A75", "versionEndExcluding": "3.6.0", "versionStartIncluding": "3.0.0"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}