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Vendor

PuTTY

3 known vulnerabilities.

PuTTY at a glance

Last 12 months
3
Critical · all time
0
Exploited · all time
0
Public exploit · all time
0
New vulnerabilities per month · last 12 months
0 3 5 December 2025: 0 vulnerabilities Dec 2025 January 2026: 0 vulnerabilities February 2026: 0 vulnerabilities March 2026: 0 vulnerabilities Mar April 2026: 0 vulnerabilities May 2026: 3 vulnerabilities June 2026: 0 vulnerabilities Jun July 2026: 0 vulnerabilities August 2026: 0 vulnerabilities September 2026: 0 vulnerabilities Sep October 2026: 0 vulnerabilities November 2026: 0 vulnerabilities
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Products

PuTTY 3

Latest advisories

  • Unscored max 5.9
    BSI-2024-0001 1 CVE

    Secret Key Recovery of NIST P-521 Private Keys through biased ECDSA nonces in PuTTY client

    The PuTTY client and all related components generate heavily biased ECDSA nonces in the case of NIST P-521. This allows for full secret key recovery in roughly 60 signatures by using state-of-the-art techniques. These signatures can either be harvested by a m…

    PuTTY FileZilla WinSCP TortoiseGit TortoiseSVN
All Critical High Medium Low Exploited only Public exploit

3 results · Feed