CVE-2021-47759

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.

CVSS v4.0

6.8 MEDIUMCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CVSS v3.1

6.2 MEDIUMCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS

0.10% chance of exploitation in the next 30 days, 1th percentile

Published

2026-01-15

Proof-of-concept exploits (1)

• https://www.exploit-db.com/exploits/50574

References

• CVE Record
• NVD entry

Related

• CVE-2021-47758
• CVE-2021-47761
• CVE-2021-47757
• CVE-2021-47762
• CVE-2021-47756
• CVE-2021-47763