Vulnerabilities > CVE-2021-33500 - Unspecified vulnerability in Putty

CVSS 7.5 - HIGH

Attack vector

NETWORK

Attack complexity

LOW

Privileges required

NONE

Confidentiality impact

NONE

Integrity impact

NONE

Availability impact

HIGH

network

low complexity

putty

NVD

Published: 2021-05-21

Updated: 2021-05-27

Summary

PuTTY before 0.75 on Windows allows remote servers to cause a denial of service (Windows GUI hang) by telling the PuTTY window to change its title repeatedly at high speed, which results in many SetWindowTextA or SetWindowTextW calls. NOTE: the same attack methodology may affect some OS-level GUIs on Linux or other platforms for similar reasons.

Vulnerable Configurations

Part	Description	Count
Application	Putty Putty Putty - Putty Putty 0.45 Putty Putty 0.46 Putty Putty 0.47 Putty Putty 0.48 Putty Putty 0.49 Putty Putty 0.50 Putty Putty 0.51 Putty Putty 0.52 Putty Putty 0.53 Putty Putty 0.53B Putty Putty 0.54 Putty Putty 0.55 Putty Putty 0.56 Putty Putty 0.57 Putty Putty 0.58 Putty Putty 0.59 Putty Putty 0.60 Putty Putty 0.61 Putty Putty 0.62 Putty Putty 0.63 Putty Putty 0.65 Putty Putty 0.66 Putty Putty 0.67 Putty Putty 0.68 Putty Putty 0.69 Putty Putty 0.70	27
OS	Microsoft Microsoft Windows -	1

Summary

Vulnerable Configurations

References