CVE-2026-18142

HIGH
MEDIUM Priority: 0.03 BB Relevance: 64/100
Published: 2026-11-04 Modified: 2026-11-10 First seen: 2026-11-04 Status: active

Attack Surface

Network Low Complexity No Interaction

CVSS Vector Breakdown

AV: Network
AC: Low
PR: Low
UI: None
S: Unchanged
C: None
I: Low
A: High

Description

IBM MQ 9.2.0.0 through 9.2.0.44 LTS, 9.3.0.0 through 9.3.0.42 LTS, 9.4.0.0 through 9.4.0.26 LTS, 9.4.0.0 through 9.4.5.1 CD, and 10.0.0.0 through 10.0.0.5 LTS and CD could allow a remote authenticated attacker to cause a denial of service and perform limited memory corruption due to an integer overflow.

Affected Software (12)

VendorProductVersion
IBM MQ 9.2.0.0
IBM MQ 9.3.0.0
IBM MQ 9.4.0.0
IBM MQ 9.4.0.0
IBM MQ 10.0.0.0
IBM MQ 9.2.0.0
IBM MQ 9.3.0.0
IBM MQ 9.4.0.0
IBM MQ 9.4.0.0
IBM MQ 10.0.0.0
ibm mq 9.2.0.0 – 9.2.0.46
ibm mq 9.4.0.0 – 9.4.5.1

References & Advisories (1)

Bug Bounty Relevance

64 / 100
✓ Network accessible
✓ Low complexity
✓ No user interaction

CVSS Score

7.1 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H

EPSS — Exploitation Probability

0.44%
Raw Score 0.004370
Percentile 38.5%
Date 2026-11-14

EPSS Trend

2026-11-14
0.00437
2026-11-13
0.00437
2026-11-12
0.00437
2026-11-10
0.00427
2026-11-09
0.00427
2026-11-08
0.00427
2026-11-07
0.00427
2026-11-06
0.00427
2026-11-05
0.00427

Intelligence Sources

mitre ref →
nvd ref →