Vulnerability · Published Jan 15, 2026 · Assigned by VulnCheck
CVE-2021-47759MTPutty 1.0.1.21 - SSH Password Disclosure
Medium 6.2
In plain English
A medium-severity security flaw in MTPutty from Ttyplus. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.1% (higher than 2% of all known vulnerabilities).
Severity (CVSS 3.1)6.2Medium
Exploit odds (30 days)0.1%top 98.4% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
MTPutty 1.0.1.21 contains a sensitive information disclosure vulnerability that allows local attackers to view SSH connection passwords through Windows PowerShell process listing. Attackers can run a PowerShell command to retrieve the full command line of MTPutty processes, exposing plaintext SSH credentials.
Affected products (as reported)
Weakness: CWE-522 · Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
References
- ExploitDB-50574 exploit
- Official MTPutty Product Homepage product