CVE-2026-16161 IBM CVE debrief

Who should care

Defenders responsible for IBM DataPower Gateway deployments should assess exposure and prioritize patching or mitigating this vulnerability to prevent potential denial-of-service attacks.

Why it matters

IBM DataPower Gateway is vulnerable to an out-of-bounds read attack, which could allow a remote attacker to cause a denial of service. Defenders should prioritize patching or mitigating this vulnerability to prevent potential denial-of-service attacks.

• Denial-of-service attacks could disrupt critical infrastructure
• Successful exploitation requires no user interaction or privileges
• Patching or mitigating this vulnerability is a defensive priority

Technical summary

IBM DataPower Gateway is vulnerable to an out-of-bounds read attack due to improper handling of input data. This could allow a remote attacker to cause a denial of service. The vulnerability has a CVSS score of 7.5 and a severity of HIGH. IBM has provided patches for the affected versions, and defenders should prioritize patching or mitigating this vulnerability to prevent potential denial-of-service attacks.

Defensive priority

Defenders should prioritize patching or mitigating this vulnerability to prevent potential denial-of-service attacks. IBM has provided patches for the affected versions.

Recommended defensive actions

• Patch or upgrade to a non-affected version of IBM DataPower Gateway
• Implement network mitigations to prevent exploitation
• Monitor for potential denial-of-service attacks

Evidence notes

The CVE record and source item provide details on the vulnerability, including affected versions and a reference to an IBM support page for patches. The CVE record was published on 2026-10-08T13:22:42.675Z and has not been modified since then. The source item provides additional information on the vulnerability, but its description is null. The affected versions of IBM DataPower Gateway are 10.5.0.0 through 10.5.0.22, 10.6.1 through 10.6.6, 10.6.0.0 through 10.6.0.10, and 11.0.0.0 11.0

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.