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PatchSiren cyber security CVE debrief

CVE-2026-76667 Hewlett Packard Enterprise CVE debrief

CVE-2026-76667 is an out-of-bounds memory read vulnerability in HPE NonStop EXPAND, a medium-severity issue with a CVSS score of 5.7. Defenders should assess exposure, prioritize verification, and consider compensating controls. The vulnerability's scope and impact are not fully understood, and further verification is required. Affected systems and potential operational impacts need evaluation. Defenders should review CVE and vendor information to guide immediate actions and long-term mitigations.

Vendor
Hewlett Packard Enterprise
Product
HPE NonStop EXPAND
CVSS
MEDIUM 5.7
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 EXPAND systems, including system administrators, security teams, and IT managers, should assess exposure and prioritize verification and patching. Operational impacts may include potential data breaches, system instability, or service disruptions. These stakeholders must evaluate the vulnerability's scope, consider compensating controls, and implement mitigations to minimize risk

Why it matters

CVE-2026-76667 is a medium-severity out-of-bounds memory read vulnerability in HPE NonStop EXPAND. Defenders should assess exposure, prioritize verification, and consider compensating controls. The vulnerability has a CVSS score of 5.7 and limited information is available about its scope and impact.

  • Verify potential for out-of-bounds memory read
  • Assess exposure of HPE NonStop EXPAND systems
  • Prioritize patching for T9057L02^AIG and earlier

Technical summary

CVE-2026-76667 is an out-of-bounds memory read vulnerability in HPE NonStop EXPAND with a CVSS score of 5.7, classified as medium severity. The vulnerability may allow unauthorized memory access, potentially leading to information disclosure or system instability. Defenders should focus on verifying exposure, assessing potential impacts, and prioritizing patching for affected systems, particularly T9057L02^AIG and earlier versions.

Defensive priority

Medium priority for verification and patching

Recommended defensive actions

  • Assess exposure of HPE NonStop EXPAND systems
  • Verify system versions and prioritize patching for T9057L02^AIG and earlier
  • Consider compensating controls for affected systems

Evidence notes

The CVE record and source item provide limited information about the vulnerability. Further verification is required to determine the scope of the vulnerability and potential impact.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-76667 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-76667

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

  • CVE-2026-76667 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-76667

    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.