CVE-2021-28848

7.5 highEPSS 1.6%

High (7.5) in mintty project mintty. EPSS 1.6% chance of exploitation in the next 30 days.

Mintty before 3.4.5 allows remote servers to cause a denial of service (Windows GUI hang) by telling the Mintty window to change its title repeatedly at high speed, which results in many SetWindowTextA or SetWindowTextW calls. In other words, it does not implement a usleep or similar delay upon processing a title change.

Severity

CVSS 3.1

7.5 high

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

EPSS: 1.6% chance of exploitation in the next 30 days; higher than 76% of CVEs (scores of 2026-10-31)
CWE: CWE-770
Published: 2021-06-03
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

mintty_project:mintty

References

https://github.com/mintty/mintty/commit/bd52109993440b6996760aaccb66e68e782762b9
https://github.com/mintty/mintty/compare/3.4.4...3.4.5
https://mintty.github.io/
https://github.com/mintty/mintty/commit/bd52109993440b6996760aaccb66e68e782762b9
https://github.com/mintty/mintty/compare/3.4.4...3.4.5

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