cvedb.io
CVE-2021-33500
HIGH · CVSS 7.5
EPSS exploitation probability: 0%
Published 2021-05-21T20:15:07.723 · Last modified 2026-06-17T03:54:41.047

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.

Affected products

putty — putty

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.