Critical PuTTY Client Vulnerability Lets Attackers Recover Private Keys

A severe vulnerability has been discovered in the PuTTY client and related components, allowing attackers to fully recover NIST P-521 private keys. The PuTTY client generates heavily biased ECDSA nonces when using the NIST P-521 elliptic curve, causing the vulnerability tracked as CVE-2024-31497. PuTTY Client Vulnerability The PuTTY client and all related components, including FileZilla, […]


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