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PatchSiren cyber security CVE debrief

CVE-2026-76662 Hewlett Packard Enterprise CVE debrief

A buffer overflow vulnerability in HPE NonStop TELSERV can cause memory corruption and DoS. The vulnerability affects HPE NonStop TELSERV systems, which are used for various critical applications. Defenders should assess exposure and prioritize patching to prevent potential DoS attacks and memory corruption. The CVE record and source item provide limited information about the vulnerability, and further verification is necessary to determine the full scope of the vulnerability. The vulnerability has a CVSS score of 5.9 and a severity of MEDIUM.

Vendor
Hewlett Packard Enterprise
Product
HPE NonStop TELSERV
CVSS
MEDIUM 5.9
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 TELSERV systems should assess exposure and prioritize patching to prevent potential DoS attacks and memory corruption. This includes operators, platform administrators, vulnerability management teams, and security teams who are responsible for ensuring the security and integrity of HPE NonStop TELSERV systems. They should review the supplied official advisory or CVE record to to

Why it matters

Defenders should prioritize verifying affected versions and assessing exposure to prevent potential DoS attacks and memory corruption.

  • Potential DoS attacks require verification of affected versions and exposure
  • Memory corruption may lead to system instability

Technical summary

A buffer overflow vulnerability in HPE NonStop TELSERV can cause memory corruption and DoS. The vulnerability is caused by a buffer overflow in the TELSERV system, which can lead to memory corruption and denial of service. Defenders should prioritize verifying affected versions and assessing exposure to prevent potential DoS attacks and memory corruption. The vulnerability has a CVSS score of 5.9 and a severity of MEDIUM.

Defensive priority

Defenders should prioritize verifying affected versions and assessing exposure.

Recommended defensive actions

  • Verify affected versions of HPE NonStop TELSERV
  • Assess exposure and prioritize patching
  • Monitor for potential DoS attacks

Evidence notes

The CVE record and source item provide limited information about the vulnerability. The CVE record was published on 2026-10-15T02:11:54.726Z and has not been modified since then. The source item provides additional vulnerability details, but the information is still limited. Defenders should verify affected versions and assess exposure to prevent potential DoS attacks and memory corruption. The official CVE Program record and NIST NVD detail page provide source-provided CVE metadata.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-76662 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-76662

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

  • CVE-2026-76662 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-76662

    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.