IBM MQ up to 10.0.0.5 integer overflow

Summaryinfo

A vulnerability categorized as very critical has been discovered in IBM MQ up to 9.2.0.44/9.3.0.42/9.4.0.26/9.4.5.1/10.0.0.5. Impacted is an unknown function. Executing a manipulation can lead to integer overflow. The identification of this vulnerability is CVE-2026-11376. The attack may be launched remotely. There is no exploit available.

Detailsinfo

A vulnerability has been found in IBM MQ up to 9.2.0.44/9.3.0.42/9.4.0.26/9.4.5.1/10.0.0.5 and classified as very critical. This vulnerability affects an unknown functionality. The manipulation with an unknown input leads to a integer overflow vulnerability. The CWE definition for the vulnerability is CWE-190. The product performs a calculation that can produce an integer overflow or wraparound, when the logic assumes that the resulting value will always be larger than the original value. This can introduce other weaknesses when the calculation is used for resource management or execution control. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

IBM MQ 9.2.0.0 through 9.2.0.44 LTS, 9.3.0.0 through 9.3.0.42 LTS, 9.4.0.0 through 9.4.0.26 LTS, 9.4.0.0 through 9.4.5.1 CD, and 10.0.0.0 through 10.0.0.5 LTS and CD could allow an authenticated attacker to cause a denial of service or potentially execute arbitrary code due to an integer overflow when processing subscription requests with crafted buffer size values.

The advisory is available at ibm.com. This vulnerability was named CVE-2026-11376 since 06/05/2026. The exploitation appears to be easy. The attack can be initiated remotely. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $5k-$25k at the moment (estimation calculated on 11/04/2026).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Vendor

• IBM

Name

• MQ

Version

• 9.2.0.0
• 9.2.0.1
• 9.2.0.2
• 9.2.0.3
• 9.2.0.4
• 9.2.0.5
• 9.2.0.6
• 9.2.0.7
• 9.2.0.8
• 9.2.0.9
• 9.2.0.10
• 9.2.0.11
• 9.2.0.12
• 9.2.0.13
• 9.2.0.14
• 9.2.0.15
• 9.2.0.16
• 9.2.0.17
• 9.2.0.18
• 9.2.0.19
• 9.2.0.20
• 9.2.0.21
• 9.2.0.22
• 9.2.0.23
• 9.2.0.24
• 9.2.0.25
• 9.2.0.26
• 9.2.0.27
• 9.2.0.28
• 9.2.0.29
• 9.2.0.30
• 9.2.0.31
• 9.2.0.32
• 9.2.0.33
• 9.2.0.34
• 9.2.0.35
• 9.2.0.36
• 9.2.0.37
• 9.2.0.38
• 9.2.0.39
• 9.2.0.40
• 9.2.0.41
• 9.2.0.42
• 9.2.0.43
• 9.2.0.44
• 9.3.0.0
• 9.3.0.1
• 9.3.0.2
• 9.3.0.3
• 9.3.0.4
• 9.3.0.5
• 9.3.0.6
• 9.3.0.7
• 9.3.0.8
• 9.3.0.9
• 9.3.0.10
• 9.3.0.11
• 9.3.0.12
• 9.3.0.13
• 9.3.0.14
• 9.3.0.15
• 9.3.0.16
• 9.3.0.17
• 9.3.0.18
• 9.3.0.19
• 9.3.0.20
• 9.3.0.21
• 9.3.0.22
• 9.3.0.23
• 9.3.0.24
• 9.3.0.25
• 9.3.0.26
• 9.3.0.27
• 9.3.0.28
• 9.3.0.29
• 9.3.0.30
• 9.3.0.31
• 9.3.0.32
• 9.3.0.33
• 9.3.0.34
• 9.3.0.35
• 9.3.0.36
• 9.3.0.37
• 9.3.0.38
• 9.3.0.39
• 9.3.0.40
• 9.3.0.41
• 9.3.0.42
• 9.4.0.0
• 9.4.0.1
• 9.4.0.2
• 9.4.0.3
• 9.4.0.4
• 9.4.0.5
• 9.4.0.6
• 9.4.0.7
• 9.4.0.8
• 9.4.0.9
• 9.4.0.10
• 9.4.0.11
• 9.4.0.12
• 9.4.0.13
• 9.4.0.14
• 9.4.0.15
• 9.4.0.16
• 9.4.0.17
• 9.4.0.18
• 9.4.0.19
• 9.4.0.20
• 9.4.0.21
• 9.4.0.22
• 9.4.0.23
• 9.4.0.24
• 9.4.0.25
• 9.4.0.26
• 9.4.5.0
• 9.4.5.1
• 10.0.0.0
• 10.0.0.1
• 10.0.0.2
• 10.0.0.3
• 10.0.0.4
• 10.0.0.5

License

• commercial

Website

• Vendor: https://www.ibm.com/

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Entryinfo

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