CVE-2026-48852LOW 3.7PuTTY 0.71 before 0.84 has an assertion failure in ECDSA signature verification.
CVE-2026-48851LOW 3.1PuTTY 0.77 before 0.84 uses a copy of the PuTTY icon as a trust indication for TELNET data but the trust status is not cleared between proxy…
CVE-2026-4115LOW 3.7A vulnerability was detected in PuTTY 0.83. Affected is the function eddsa_verify of the file crypto/ecc-ssh.c of the component Ed25519 Sign…
CVE-2024-31497MEDIUM 5.9In PuTTY 0.68 through 0.80 before 0.81, biased ECDSA nonce generation allows an attacker to recover a user's NIST P-521 secret key via a qui…
CVE-2023-48795MEDIUM 5.9The SSH transport protocol with certain OpenSSH extensions, found in OpenSSH before 9.6 and other products, allows remote attackers to bypas…