# CVE-2025-11230

## Summary

- **CVE ID:** CVE-2025-11230
- **Severity:** HIGH
- **CVSS Score:** 7.5 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
- **CWE:** CWE-407
- **Published:** Nov 19, 2025
- **Last Modified:** Mar 12, 2026

## Description

Inefficient algorithm complexity in mjson in HAProxy allows remote attackers to cause a denial of service via specially crafted JSON requests.

## Affected Products

- HAProxy Technologies — HAProxy Community Edition (2.4.0)
- HAProxy Technologies — HAProxy Community Edition (2.6.0)
- HAProxy Technologies — HAProxy Community Edition (2.8.0)
- HAProxy Technologies — HAProxy Community Edition (3.0.0)
- HAProxy Technologies — HAProxy Community Edition (3.1.0)
- HAProxy Technologies — HAProxy Community Edition (3.2.0)

## References

- [CNA](https://www.haproxy.com/blog/october-2025-cve-2025-11230-haproxy-mjson-library-denial-of-service-vulnerability)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.69%
- **EPSS Percentile:** 50.7

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-10._