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PatchSiren cyber security CVE debrief

CVE-2026-79840 Hewlett Packard Enterprise CVE debrief

A buffer overflow vulnerability in HPE NonStop XABroker may cause memory corruption, resulting in application crash. Defenders should assess exposure, prioritize verification, and consider compensating controls. The vulnerability has a CVSS score of 7.3 and is classified as HIGH severity. Affected product deployments should be identified in managed environments, and owners assigned for follow-up. Review of the supplied official advisory or CVE record is recommended to validate affected scope, severity, and vendor guidance.

Vendor
Hewlett Packard Enterprise
Product
HPE NonStop XABroker
CVSS
HIGH 7.3
CISA KEV
Not listed in stored evidence
Original CVE published
2026-10-15
Original CVE updated
2026-10-15
Advisory published
2026-10-15
Advisory updated
2026-10-15

Who should care

Defenders responsible for HPE NonStop XABroker deployments, particularly those using version T0804L40 and earlier, should assess exposure and prioritize verification.

Why it matters

Defenders should assess exposure, prioritize verification, and consider compensating controls due to a buffer overflow vulnerability in HPE NonStop XABroker that may cause memory corruption and application crash.

  • Potential application crash due to memory corruption
  • Need for verification of HPE NonStop XABroker versions
  • Potential need for compensating controls to mitigate impact

Technical summary

A buffer overflow vulnerability in HPE NonStop XABroker may cause memory corruption, resulting in application crash. The vulnerability has a CVSS score of 7.3 and is classified as HIGH severity. It affects HPE NonStop XABroker, particularly version T0804L40 and earlier. Defenders should prioritize verification of these versions and consider compensating controls to mitigate potential impact.

Defensive priority

Defenders should prioritize verification of HPE NonStop XABroker versions T0804L40 and earlier, and consider compensating controls.

Recommended defensive actions

  • Verify HPE NonStop XABroker version T0804L40 and earlier for potential exposure
  • Consider compensating controls to mitigate potential impact
  • Monitor for updates from Hewlett Packard Enterprise regarding remediation

Evidence notes

The CVE record and source item provide limited information about the vulnerability, including its existence, CVSS score, and affected version. The source item from cve_program_cvelist_v5 indicates a memory corruption vulnerability in HPE NonStop XABroker. Defenders should verify HPE NonStop XABroker versions T0804L40 and earlier for potential exposure. The CVE Program record with source-provided CVE metadata and the official NIST NVD detail page provide additional context.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-79840 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-79840

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

  • CVE-2026-79840 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-79840

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

Supplemental 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.