8.8

CVE-2026-10853: ibm mq Unsafe Reflection

CVSS: 8.8v3.1HighAnalyzed
Published 18-09-2026Last modified 21-09-2026
Open JSON

Vulnerability summary

CVE-2026-10853 is a high (CVSS 8.8) Unsafe Reflection vulnerability in ibm mq. EPSS estimates a 0.37% chance of exploitation in the next 30 days, higher than 30.1% of scored vulnerabilities.

Overall risk
35/100
0100
Medium · default modelHow is this calculated?
CVSS score
8.8/10
010
High · v3.1 (NVD)
EPSS score
0.37%
0%100%
Low · +0.02 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 18-09-2026
    PublishedVulnerability first disclosed.
  2. 21-09-2026
    Last modifiedVulnerability information updated.

Description

IBM MQ could allow an authenticated attacker with cluster access to cause a denial of service or potentially execute arbitrary code due to improper validation of cluster command message lengths.

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

0.37%

Chance of exploitation in the next 30 days

Percentile

30%

Versus all other CVEs

30-day change

+0.02 pp

From 0.36% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.37%

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

Ibm1 product
  • mq≥ 9.1.0.0, ≤ 9.1.0.37 LTS | ≥ 9.2.0.0, ≤ 9.2.0.43 LTS | ≥ 9.3.0.0, ≤ 9.3.0.41 LTS | ≥ 9.3.0.0, ≤ 9.3.5.1 CD | ≥ 9.4.0.0, ≤ 9.4.0.25 LTS | ≥ 9.4.0.0, ≤ 9.4.5.1 CD | ≥ 9.1.0.0, ≤ 9.1.0.37 | ≥ 9.2.0.0, ≤ 9.2.0.43 | ≥ 9.3.0.0, ≤ 9.3.0.41 | ≥ 9.3.0.0, ≤ 9.3.5.1 | ≥ 9.4.0.0, ≤ 9.4.0.25 | ≥ 9.4.0.0, ≤ 9.4.5.1 | 10.0.0.0

1 vendor · 1 product

References

1 links