Dashboard / CVE-2026-12538

CVE-2026-12538

MEDIUM
MEDIUM Priority: 0.02 BB Relevance: 61/100
Published: 2026-11-04 Modified: 2026-11-09 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: Low
I: None
A: Low

Description

IBM MQ 9.4.0.0 to 9.4.0.26, 9.4.1.0 to 9.4.5.3, and 10.0.0.1 to 10.0.0.5 could allow an authenticated attacker to obtain sensitive information or cause a denial of service due to improper validation of message header structure length fields.

Weakness Classification (1)

Affected Software (6)

VendorProductVersion
IBM MQ Appliance 9.4.0.0
IBM MQ Appliance 9.4.1.0
IBM MQ Appliance 10.0.0.1
IBM MQ Appliance 9.4.0.0
IBM MQ Appliance 9.4.1.0
IBM MQ Appliance 10.0.0.1

References & Advisories (1)

Bug Bounty Relevance

61 / 100
✓ Network accessible
✓ Low complexity
✓ No user interaction

CVSS Score

5.4 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:L

EPSS — Exploitation Probability

0.33%
Raw Score 0.003330
Percentile 26.9%
Date 2026-11-14

EPSS Trend

2026-11-14
0.00333
2026-11-13
0.00333
2026-11-12
0.00333
2026-11-10
0.00333
2026-11-09
0.00333
2026-11-08
0.00333
2026-11-07
0.00333
2026-11-06
0.00333
2026-11-05
0.00333

Intelligence Sources

mitre ref →
nvd ref →

External Links