Vulnerability Details CVE-2025-62514
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.0
EPSS Ranking 4.5%
CVSS Severity
CVSS v3 Score 8.3
Products affected by CVE-2025-62514
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cpe:2.3:a:parsec.cloud:parsec:3.0.0
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cpe:2.3:a:parsec.cloud:parsec:3.0.1
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cpe:2.3:a:parsec.cloud:parsec:3.0.2
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cpe:2.3:a:parsec.cloud:parsec:3.0.3
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cpe:2.3:a:parsec.cloud:parsec:3.1.0
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cpe:2.3:a:parsec.cloud:parsec:3.2.0
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cpe:2.3:a:parsec.cloud:parsec:3.2.1
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cpe:2.3:a:parsec.cloud:parsec:3.2.2
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cpe:2.3:a:parsec.cloud:parsec:3.2.3
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cpe:2.3:a:parsec.cloud:parsec:3.2.4
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cpe:2.3:a:parsec.cloud:parsec:3.3.0
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cpe:2.3:a:parsec.cloud:parsec:3.3.1
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cpe:2.3:a:parsec.cloud:parsec:3.3.2
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cpe:2.3:a:parsec.cloud:parsec:3.3.3
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cpe:2.3:a:parsec.cloud:parsec:3.4.0
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cpe:2.3:a:parsec.cloud:parsec:3.5.0
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cpe:2.3:a:parsec.cloud:parsec:3.5.1
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cpe:2.3:a:parsec.cloud:parsec:3.5.2