CVE-2021-28848 Denial of service in n/a

What is CVE-2021-28848?

CVE-2021-28848 is a high-severity denial of service vulnerability in n/a, published on 3 Jun 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official 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.

Weakness: CWE-770

Which versions are affected by CVE-2021-28848?

It affects 1 product.

Products include Mintty Project Mintty.

How do I fix CVE-2021-28848?

No fix has been published for CVE-2021-28848 yet. Limit exposure of the affected software until one is available.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2021-28848 being exploited?

There is no known exploitation of CVE-2021-28848 in the wild and no public exploit code.

Other vulnerabilities in n/a

• CVE-2023-39726 Code injection in n/a Critical 9.8
• CVE-2022-47583 Terminal character injection in Mintty before 3.6.3 allows code execution via unescaped output to the terminal. Critical 9.8
• CVE-2025-1052 Mintty Sixel Image Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability High 8.8
• CVE-2021-31701 Other in n/a High 7.5

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-29fh-98q8-5ghm.