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7.5 High

CVE-2019-4055 IBM MQ 8.0.0.0 through 8.0.0.10, 9.0.0.0 through 9.0.0.5, and 9.1.0.0 through 9.1.1 is vulnerable to a denial of service…

Description

IBM MQ 8.0.0.0 through 8.0.0.10, 9.0.0.0 through 9.0.0.5, and 9.1.0.0 through 9.1.1 is vulnerable to a denial of service attack within the TLS key renegotiation function. IBM X-Force ID: 156564.

Affected products and versions

Product Affected versions Fixed in
MQ 9.1 9.1.0.0 → 9.1.1 No fix stated
MQ 9.0 9.0.0.0 → 9.0.0.5 No fix stated
MQ 8.0 8.0.0.0 → 8.0.0.10 No fix stated

Other CVEs of MQ

The 117 CVEs of MQ →
CVE-2026-10859 IBM MQ XMS .NET client is affected by an arbitrary code execution vulnerability 7.5 High CVE-2026-11376 IBM MQ is affected by a denial of service vulnerability 8.8 High CVE-2026-11724 IBM MQ Managed File Transfer is affected by an arbitrary code execution vulnerability 8.5 High CVE-2026-12356 IBM MQ Managed File Transfer is affected by an arbitrary code execution vulnerability 7.5 High
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