CVE-2026-16167 IBM CVE debrief

Who should care

Defenders responsible for IBM DataPower Gateway systems, including system administrators, security teams, and IT personnel, should assess exposure and prioritize patching. This vulnerability affects operators of IBM DataPower Gateway, who must verify affected versions and apply patches to prevent denial-of-service attacks. Vulnerability management and security teams should review and implement compensating controls,

Why it matters

Defenders should care about this vulnerability because it could allow a remote attacker to cause a denial of service, and they should prioritize patching affected systems.

• Denial of service is a supported consequence
• Verify affected versions and apply patches

Technical summary

IBM DataPower Gateway is vulnerable to an out-of-bounds write attack due to improper bounds checking, which could allow a remote attacker to cause a denial of service. The vulnerability affects various versions of IBM DataPower Gateway, including 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 through 11.0.0.2. Affected systems require patching to prevent potential security breaches.

Defensive priority

High

Recommended defensive actions

• Review and apply patches from IBM
• Verify affected versions and upgrade if necessary
• Monitor for suspicious activity

Evidence notes

The CVE record and source item provide details on the vulnerability, but limited information is available on exploitation or impact. Evidence from the CVE Program and NIST NVD detail pages confirms the vulnerability's existence and provides guidance on affected versions and patches. However, additional verification is necessary to ensure complete exposure assessment and mitigation. Defenders should review official advisories and CVE records to validate affected scope, severity, and to

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.