Known Vulnerabilities in PuTTY

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Secret key recovery of NIST P-521 private keys in PuTTY15 Apr, 2024
Medium Patched Public exploit
PuTTY update for OpenSSH19 Dec, 2023
Low Patched Public exploit
Spoofing attack in PuTTY20 Jul, 2021
Medium Patched
MitM attack in PuTTY02 Jul, 2020
Medium Patched
Multiple vulnerabilities in PuTTY07 Oct, 2019
Medium Patched
Multiple vulnerabilities in PuTTY21 Mar, 2019
High Patched
Buffer overflow in PuTTY21 Mar, 2019
High Patched
Remote code execution in Putty05 May, 2018
Medium Patched
Remote code execution in PuTTY06 Jun, 2017
High Patched Public exploit
DLL loading error in PuTTY08 Jul, 2016
High Patched
Stack-based buffer overflow in PuTTY08 Apr, 2016
High Patched Public exploit
Input validation error in PuTTY07 Dec, 2015
Medium Patched
Information disclosure in PuTTY27 Mar, 2015
Low Patched
Multiple vulnerabilities in PuTTY20 Aug, 2013
Medium Patched