PatchSiren

PatchSiren cyber security CVE debrief

CVE-2026-16177 IBM CVE debrief

IBM DataPower Gateway Out-of-bounds Read vulnerability allows remote authenticated attackers to obtain sensitive information. Defenders should verify affected versions, apply patches, and monitor systems for potential anomalies. The vulnerability affects 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. It has a medium severity with a CVSS score of 5.3. Official patches and guidance are available from IBM.

Vendor
IBM
Product
DataPower Gateway 10.6CD
CVSS
MEDIUM 5.3
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 of IBM DataPower Gateway systems, particularly those responsible for authentication, gateway security, vulnerability management, and security teams. They should verify affected versions, apply patches, and monitor systems for potential anomalies. This includes operators, platform administrators, and security personnel who manage IBM DataPower Gateway deployments.

Why it matters

CVE-2026-16177 is a medium-severity vulnerability in IBM DataPower Gateway that could allow remote authenticated attackers to obtain sensitive information. Defenders should verify affected versions, apply patches, and monitor systems for potential anomalies.

  • Potential exposure of sensitive information
  • Need for patch verification and application
  • Monitoring for authentication anomalies
  • Verification of affected versions and mitigations

Technical summary

The vulnerability is caused by an out-of-bounds read in IBM DataPower Gateway. This could allow a remote authenticated attacker to obtain sensitive information. 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. Defenders should review and apply patches from IBM, verify affected versions, and monitor systems for anomalies.

Defensive priority

Medium priority for authentication and gateway systems

Recommended defensive actions

  • Review and apply patches from IBM
  • Verify affected versions and apply mitigations if necessary
  • Monitor authentication and gateway systems for potential anomalies

Evidence notes

The CVE record and source item provide details on the vulnerability. However, the scope of affected versions and potential impact require verification from official sources.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-16177 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-16177

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

  • CVE-2026-16177 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-16177

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

Supplemental references

  • IBM DataPower Gateway Out-of-bounds Read

    Unverified legacy reference

    URL: https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/16xxx/CVE-2026-16177.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.