Mintty before 3.4.5 allows remote servers to cause a denial of service (Windows GUI hang)…
Priority LOW 36CWE-770Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-770.
Summary
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.
Why it matters now
EPSS 0.01637 76th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:mintty_project:mintty:*:*:*:*:*:*:*:* | before 3.4.5 | Vulnerable | Mintty Project |
- cpe:2.3:a:mintty_project:mintty:*:*:*:*:*:*:*:* Versions before 3.4.5 Vulnerable ·Mintty Project
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2021-28848
- 2026-10-03 Alias added: GHSA-29fh-98q8-5ghm
References
More Mintty Project Mintty vulnerabilities
- TI-2023-20759 An issue in Mintty v.3.6.4 and before allows a remote attacker to execute arbitrary code… CVSS 3.1CRITICAL 9.8
- TI-2022-23623 Terminal character injection in Mintty before 3.6.3 allows code execution via unescaped output to the terminal. CVSS 3.1CRITICAL 9.8
- TI-2025-00891 Heap-based buffer overflow in Mintty CVSS 3.1HIGH 8.8
- TI-2021-11753 Mintty before 3.4.7 mishandles Bracketed Paste Mode. CVSS 3.1HIGH 7.5
Sources
- CVE-2021-28848 · CVE Program
- CVE-2021-28848 · NVD
- FIRST EPSS
- GHSA-29fh-98q8-5ghm · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences