{"id":"CVE-2021-28848","url":"https://www.cyber-defence.io/tools/cve/CVE-2021-28848","generatedAt":"2026-10-27T22:25:30.845Z","title":"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.","description":"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.","published":"2021-06-03T12:15:08.000Z","lastModified":"2026-06-17T03:46:59.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.1","score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},"cwe":["CWE-770"],"affected":["mintty project/mintty"],"epss":{"score":0.01637,"percentile":0.76168,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (1.64%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"https://github.com/mintty/mintty/commit/bd52109993440b6996760aaccb66e68e782762b9","tags":["Patch","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://github.com/mintty/mintty/compare/3.4.4...3.4.5","tags":["Patch","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://mintty.github.io/","tags":["Vendor Advisory"],"source":"cve@mitre.org"},{"url":"https://github.com/mintty/mintty/commit/bd52109993440b6996760aaccb66e68e782762b9","tags":["Patch","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/mintty/mintty/compare/3.4.4...3.4.5","tags":["Patch","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://mintty.github.io/","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2021-28848","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}