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CVE-2026-16170 IBM CVE debrief

IBM DataPower Gateway is vulnerable to a heap buffer overflow, which could allow a remote attacker to cause a denial of service. Affected versions include 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. The vulnerability is due to improper handling of input data, and defenders should assess exposure and prioritize patching. The CVE Program record and NVD vulnerability detail provide official information on the vulnerability.

Vendor
IBM
Product
DataPower Gateway 10.6CD
CVSS
HIGH 7.5
CISA KEV
Not listed in stored evidence
Original CVE published
2026-10-08
Original CVE updated
2026-10-08
Advisory published
2026-10-08
Advisory updated
2026-10-08

Who should care

Defenders responsible for IBM DataPower Gateway deployments should assess exposure and prioritize patching due to the risk of denial of service attacks. This includes operators, security teams, and vulnerability management teams who need to verify exposure and apply patches or mitigations as needed. The affected versions require patching and updating to prevent potential exploitation, and defenders should review and

Why it matters

Defenders should prioritize verifying exposure and assessing potential impact on DataPower Gateway deployments due to the risk of denial of service attacks. Affected versions require patching and updating to prevent potential exploitation.

  • Potential denial of service attacks
  • Need to verify exposure and assess impact on DataPower Gateway deployments
  • Priority on patching and updating affected versions

Technical summary

IBM DataPower Gateway is vulnerable to a heap buffer overflow due to improper handling of input data. This could allow a remote attacker to cause a denial of service. The vulnerability affects multiple versions of the product, 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. Defenders should verify exposure and assess potential impact on DataPower Gateway deployments.

Defensive priority

Defenders should prioritize verifying exposure and assessing potential impact on DataPower Gateway deployments.

Recommended defensive actions

  • Verify DataPower Gateway version and assess exposure
  • Review and apply IBM's patch
  • Monitor for potential denial of service attacks

Evidence notes

The CVE Program record and NVD vulnerability detail provide official information on the vulnerability. IBM's advisory is referenced as a supplemental source.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-16170 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-16170

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-16170 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-16170

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

  • IBM DataPower Gateway Out-of-bounds Write

    Unverified legacy reference

    URL: https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/16xxx/CVE-2026-16170.json

    cve_program_cvelist_v5

  • Source reference

    Unverified legacy reference

    URL: https://www.ibm.com/support/pages/node/7289775

    Supplemental source - vendor-advisory, patch

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.