Vulnerability Intelligence Report
IBM MQ Appliance is affected by a heap buffer overflow vulnerability in protocol message processing
CVE-2026-10747
IBM MQ Appliance could allow a remote attacker to cause a denial of service or potentially execute arbitrary code due to a heap buffer overflow in protocol message processing before authentication.
No Active Exploit Signals
CVSS Base Score
10.0
CRITICAL
Exploitability:3.9
Impact Score:6.1
EPSS Probability:0.52%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
—
Authentication
—
Weaponization
—
SSVC Action
—
Weaknesses (CWE)
CWE-122 ↗CWE-122 Heap-based Buffer Overflow
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| IBM | MQ Appliance | 9.4 LTS <= 9.4.0.0 to 9.4.0.25 (affected), 9.4 CD <= 9.4.1.0 to 9.4.5.2 (affected), 10.0.0.0 <= 10.0.0.1 only (affected) |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
EPSS Score
0.519%
GitHub Advisory
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | IBM Corporation · Vendor · USA |
| Reserved | 2026-06-03T13:39:03 |
| Published | 2026-09-18T15:55:43 |
| Last Updated | 2026-09-21T12:47:23 |
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