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CVE-2021-28848

7.5 · HIGH

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 SetWindowT…

Published Jun 3, 2021CWE-770EPSS 1.64%

Overview

CVE-2021-28848 is a high-severity vulnerability. It was published on June 3, 2021 and has a CVSS 3.1 base score of 7.5 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/mintty/mintty/commit/bd52109993440b6996760aaccb66e68e782762b9GitHubgithub.com/mintty/mintty/compare/3.4.4...3.4.5Refmintty.github.io/GitHubgithub.com/mintty/mintty/commit/bd52109993440b6996760aaccb66e68e782762b9GitHubgithub.com/mintty/mintty/compare/3.4.4...3.4.5Refmintty.github.io/

How CyberStrike helps

Frequently asked questions

What is CVE-2021-28848?

CVE-2021-28848 is a high-severity vulnerability. It was published on June 3, 2021 and has a CVSS 3.1 base score of 7.5 (HIGH).

How severe is CVE-2021-28848?

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2021-28848?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2021-28848?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2021-28848 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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