IBM MQ up to 10.0.0.5 integer overflow

Summaryinfo

A vulnerability classified as problematic was 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. This affects an unknown function. Such manipulation leads to integer overflow. This vulnerability is documented as CVE-2026-18142. The attack can be executed remotely. There is not any exploit available.

Detailsinfo

A vulnerability was 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 problematic. Affected by this issue is an unknown function. The manipulation with an unknown input leads to a integer overflow vulnerability. Using CWE to declare the problem leads to 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. Impacted is 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 a remote authenticated attacker to cause a denial of service and perform limited memory corruption due to an integer overflow.

The advisory is available at ibm.com. This vulnerability is handled as CVE-2026-18142 since 07/28/2026. The exploitation is known to be easy. The attack may be launched 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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