# CVE-2026-12667

## Summary

- **CVE ID:** CVE-2026-12667
- **Severity:** HIGH
- **CVSS Score:** 7.1 (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:L)
- **CWE:** CWE-611
- **Published:** Sep 15, 2026
- **Last Modified:** Sep 15, 2026

## Description

IBM MQ 9.1.0.0 through 9.1.0.37 LTS, 9.2.0.0 through 9.2.0.43 LTS, 9.3.0.0 through 9.3.0.41 LTS, 9.3.0.0 through 9.3.5.1 CD, 9.4.0.0 through 9.4.0.25 LTS, 9.4.0.0 through 9.4.5.1 CD, and 10.0.0.0 could allow an authenticated attacker to read files from a vulnerable .NET client or cause limited denial of service due to improper handling of XML external entities in RFH2 folder parsing.

## Affected Products

- IBM — MQ (9.1.0.0)
- IBM — MQ (9.2.0.0)
- IBM — MQ (9.3.0.0)
- IBM — MQ (9.4.0.0)
- IBM — MQ (10.0.0.0)

## References

- [CNA](https://www.ibm.com/support/pages/node/7284936)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.36%
- **EPSS Percentile:** 30.0

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-18._