6.5

CVE-2026-12155: ibm mq advanced container images Deserialization of Untrusted Data

CVSS: 6.5v3.1MediumAwaiting analysis
Published 19-10-2026Last modified 19-10-2026
Open JSON

Vulnerability summary

CVE-2026-12155 is a medium (CVSS 6.5) Deserialization of Untrusted Data vulnerability in ibm mq advanced container images. EPSS estimates a 0.25% chance of exploitation in the next 30 days, higher than 15.8% of scored vulnerabilities.

Overall risk
26/100
0100
Medium · default modelHow is this calculated?
CVSS score
6.5/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.25%
0%100%
Low · Change unavailable
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 19-10-2026
    PublishedVulnerability first disclosed.
  2. 19-10-2026
    Last modifiedVulnerability information updated.

Description

IBM MQ could allow an authenticated attacker to cause a denial of service by sending specially crafted multicast status messages that trigger a NULL pointer dereference.

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

0.25%

Chance of exploitation in the next 30 days

Percentile

16%

Versus all other CVEs

30-day change

Change unavailable

Change unavailable

20-10-202620-10-2026
EPSS score
0.25%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Ibm2 products
  • mq advanced container images≥ 9.4.0.6-r1, ≤ r1, 9.4.0.6-r2, 9.4.0.7-r1, 9.4.0.10-r1, 9.4.0.10-r2, 9.4.0.11-r1, 9.4.0.11-r2, 9.4.0.11-r3, 9.4.0.12-r1, 9.4.0.15-r1 - 9.4.0.15-r4, 9.4.0.16-r1, 9.4.0.16-r2, 9.4.0.17-r1, 9.4.0.17-r2, 9.4.0.20-r1, 9.4.0.21-r1, 9.4.0.21-r2, 9.4.0.25-r1 - 9.4.0.25-r3, 9.4.0.26-r1CD: 9.4.1.0-r1, 9.4.1.0-r2, 9.4.1.1-r1, 9.4.2.0-r1, 9.4.2.0-r2, 9.4.2.1-r1, 9.4.2.1-r2, 9.4.3.0-r1, 9.4.3.0-r2, 9.4.3.1-r1 - 9.4.3.1-r3, 9.4.4.0-r1 - 9.4.4.0-r4, 9.4.4.1-r1, 9.4.5.0-r1, 9.4.5.0-r2, 9.4.5.1-r1, 10.0.0.0-r1 - 10.0.0.0-r4, 10.0.0.5-r1LTS: 9.3.0.0-r1, 9.3.0.0-r2, 9.3.0.0-r3, 9.3.0.1-r1, 9.3.0.1-r2, 9.3.0.1-r3, 9.3.0.1-r4, 9.3.0.3-r1, 9.3.0.4-r1, 9.3.0.4-r2, 9.3.0.5-r1, 9.3.0.5-r2, 9.3.0.5-r3, 9.3.0.6-r1, 9.3.0.10-r1, 9.3.0.10-r2, 9.3.0.11-r1,9.3.0.11-r2, 9.3.0.15-r1, 9.3.0.16-r1, 9.3.0.16-r2, 9.3.0.17-r1, 9.3.0.17-r2, 9.3.0.17-r3, 9.3.0.20-r1, 9.3.0.20-r2, 9.3.0.21-r1, 9.3.0.21-r2, 9.3.0.21-r3, 9.3.0.25-r1, 9.4.0.0-r1, 9.4.0.0-r2, 9.4.0.0-r3, 9.4.0.5-r1, 9.4.0.5-r2 | 9.4.0.6-r2 | 9.4.0.7-r1 | 9.4.0.10-r1 | 9.4.0.10-r2 | 9.4.0.11-r1 | 9.4.0.11-r2 | 9.4.0.11-r3 | 9.4.0.12-r1 | ≥ 9.4.0.15-r1, ≤ 9.4.0.15-r4 | 9.4.0.16-r1 | 9.4.0.16-r2 | 9.4.0.17-r1 | 9.4.0.17-r2 | 9.4.0.20-r1 | 9.4.0.21-r1 | 9.4.0.21-r2 | ≥ 9.4.0.25-r1, ≤ 9.4.0.25-r3 | 9.4.0.26-r1 | 9.4.1.0-r1 | 9.4.1.0-r2 | 9.4.1.1-r1 | 9.4.2.0-r1 | 9.4.2.0-r2 | 9.4.2.1-r1 | 9.4.2.1-r2 | 9.4.3.0-r1 | 9.4.3.0-r2 | ≥ 9.4.3.1-r1, ≤ 9.4.3.1-r3 | 9.4.4.0-r1 | 9.4.4.1-r1 | 9.4.5.0-r1 | 9.4.5.0-r2 | 9.4.5.1-r1 | ≥ 10.0.0.0-r1, ≤ 10.0.0.0-r4 | 10.0.0.5-r1 | 9.3.0.0-r1 | 9.3.0.0-r2 | 9.3.0.0-r3 | 9.3.0.1-r1 | 9.3.0.1-r2 | 9.3.0.1-r3 | 9.3.0.1-r4 | 9.3.0.3-r1 | 9.3.0.4-r1 | 9.3.0.4-r2 | 9.3.0.5-r1 | 9.3.0.5-r2 | 9.3.0.5-r3 | 9.3.0.6-r1 | 9.3.0.10-r1 | 9.3.0.10-r2 | 9.3.0.11-r1 | 9.3.0.11-r2 | 9.3.0.15-r1 | 9.3.0.16-r1 | 9.3.0.16-r2 | 9.3.0.17-r1 | 9.3.0.17-r2 | 9.3.0.17-r3 | 9.3.0.20-r1 | 9.3.0.20-r2 | 9.3.0.21-r1 | 9.3.0.21-r2 | 9.3.0.21-r3 | 9.3.0.25-r1 | 9.4.0.0-r1 | 9.4.0.0-r2 | 9.4.0.0-r3 | 9.4.0.5-r1 | 9.4.0.5-r2
  • mq operator≥ 3.2.0, ≤ 3.2.29 | ≥ 3.3.0, < 3.4.0 | 3.4.1 | 3.5.0 | ≥ 3.5.1, ≤ 3.5.3 | ≥ 3.6.0, ≤ 3.6.4 | ≥ 3.7.0, ≤ 3.7.2 | 3.8.0 | 3.8.1 | 3.9.0 | 3.9.1 | 3.9.2 | 4.0.0 | 4.0.1 | 4.0.2 | 4.0.3 | 4.0.4 | ≥ 2.0.0, ≤ 2.0.29

1 vendor · 2 products

References

1 links