CVE-2026-12667CWE-611xxe

CVE-2026-12667

High · published September 15, 2026

CVSS v3.1
7.1
EPSS
0%
Percentile
17.4
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
7.1 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:L
CVSS v4.0
Not supplied
EPSS
0.00265 · 17.4th percentile
Weakness
CWE-611 · Improper Restriction of XML External Entity Reference
Published
2026-09-15T22:17Z
References (1)
https://www.ibm.com/support/pages/node/7284936 · [email protected]
EPSS history
Timeline
  • 17 SEP 03:28Z
    EPSS moved — → 0%
    epss
  • 15 SEP 17:07Z
    IBM MQ .NET client is vulnerable to XML external entity injection
    cvelistv5