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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.

PUBLISHED Reserved 2026-01-10 | Published 2026-01-15 | Updated 2026-01-15 | Assigner VulnCheck




MEDIUM: 6.8CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
MEDIUM: 6.2CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Problem types

Insufficiently Protected Credentials

Product status

1.0.1.21
affected

Credits

Sedat Ozdemir finder

References

www.exploit-db.com/exploits/50574 (ExploitDB-50574) exploit

ttyplus.com/multi-tabbed-putty/ (Official MTPutty Product Homepage) product

cve.org (CVE-2021-47759)

nvd.nist.gov (CVE-2021-47759)

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