CVE-2026-15824 IBM CVE debrief

Who should care

Defenders responsible for IBM DataPower Gateway systems should assess exposure and prioritize patching or mitigation to prevent potential denial of service attacks.

Why it matters

IBM DataPower Gateway is vulnerable to a denial of service due to a heap-based buffer overflow. Defenders should prioritize patching or mitigating this vulnerability to prevent potential denial of service attacks.

• Potential denial of service attacks could impact system availability.
• Defenders should verify affected versions and prioritize patching or mitigation.
• Successful exploitation could lead to system crashes or instability.

Technical summary

IBM DataPower Gateway 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 are vulnerable to a denial of service due to a heap-based buffer overflow. The vulnerability is caused by a heap-based buffer overflow, and defenders should assess exposure and prioritize patching or mitigation to prevent potential denial of service attacks.

Defensive priority

Defenders should prioritize patching or mitigating this vulnerability to prevent potential denial of service attacks.

Recommended defensive actions

• Patch or upgrade affected IBM DataPower Gateway versions to the latest fixed version.
• Implement network segmentation to limit the attack surface.
• Monitor for suspicious traffic and system behavior.

Evidence notes

The CVE record and source item provide details on the vulnerability, including affected versions of IBM DataPower Gateway. The vulnerability is caused by a heap-based buffer overflow, and defenders should verify affected versions and prioritize patching or mitigation. The source item and CVE record have limited information on the vulnerability, and defenders should review the official advisory or CVE record to validate affected scope, severity, and vendor guidance.

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.