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CVE-2026-76664

HPE NonStop EXPAND - Out-of-Bounds memory read/write

CVSS score

6.4

EPSS probability

—

Risk score

0.6

Published

9 h ago

OverviewPublic Exploits (0)NewsroomVulnerability Timeline
Patch status has not yet been verified

Resmî kaynaklarda yeterli kanıt bulunamadı. Bu sonuç “yama yok” anlamına gelmez.

Impact on My Inventory

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Vulnerability description

CVE AI research

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DayBreach AI Explanation

Verified against sources

CVE-2026-76664 – HPE NonStop EXPAND Out-of-bounds Read

Sources read

1

Source agreement

Tam uyum

Evidence confidence

%55

Short explanation

CVE-2026-76664 is an out-of-bounds read/write flaw in HPE NonStop EXPAND. It has a CVSS base score of 6.4, attack vector adjacent network, high complexity, and requires no privileges. Patch status is unknown and it is not listed in the CISA KEV program.

Why does it matter?

An attacker could corrupt memory over the network and cause service disruption or denial of service.

What should be done?

  • Monitor HPE security advisories
  • Apply patches when released
  • Restrict network access via firewalls and segmentation
  • Review logs for anomalous activity
Chain of evidence and sources4 verified claims

CVE-2026-76664, HPE NonStop EXPAND’de out-of-bounds okuma/yazma hatasıdır.

S0 · daybreach-canonical

Bu güvenlik açığı için CVSS tabanı 6.4 ve vektör CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:H olarak rapor edilmiştir.

S0 · daybreach-canonical

CVE, CISA KEV listesinde yer almamaktadır.

S0 · daybreach-canonical

Yama durumu UNKNOWN olarak belirtilmiş; resmi bir yama doğrulanmamıştır.

S0 · daybreach-canonical
Show the technical text from the sources

A security vulnerability in HPE NonStop EXPAND may result in out-of-bounds memory read/write operations

CVSS vector: CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:H

CWE: CWE-125

Explanation produced with the local gemini-flash-lite-latest model. Numerical metrics and the KEV, patch and exploit statuses are not determined by AI.

IMPACT: Affected Products and Software

Affected Products

The following products are affected by CVE-2026-76664 vulnerability. Where our threat engine knows the exact affected versions, they are listed below.

IDVENDORPRODUCTACTION
1Hewlett Packard EnterpriseHPE NonStop EXPAND View
Total affected vendors: 1|Products: 1

RED HAT CSAF/VEX: Product Impact Check

Red Hat has not yet published a CSAF/VEX impact record for this CVE. This does not mean “not affected”.

SCORING: CVSS from Multiple Sources

CVSS Scores

The Common Vulnerability Scoring System is a standardised framework for assessing the severity of vulnerabilities in software and systems. We collect and display CVSS scores from several sources for each CVE.

SCOREVERSIONSEVERITYVECTORSOURCE
6.4CVSS V3_1MEDIUMCVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:HCVE CNA
6.4CVSS V31MEDIUMCVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:HNVD

Patch and Remediation Guide

Solution & Remediation Advisory

Patch status unknown

İncelenen resmî kaynaklarda yama durumu doğrulanamadı. Bu sonuç “yama yok” anlamına gelmez.

Confirm the affected product and version against the source evidence above.
Restrict access to internet-facing services and apply network segmentation.
Until a patch is confirmed, follow the vendor advisory; do not read an unknown status as “no patch”.
Monitor server logs and network endpoints for signs of anomalous execution.

Public exploit and active exploitation status

Verified exploit intelligence

No verified public PoC, exploit repository or Metasploit module has been found for this CVE yet.

Weakness Classification and Attack Patterns (CWE & CAPEC)

CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorises the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-76664 is associated with the following CWEs:

CWE-125: Out-of-bounds Read

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-76664 weaknesses.

CAPEC-66: SQL InjectionCAPEC-126: Path TraversalCAPEC-28: OS Command Injection

Attack Vector and Accessibility

ExposureBitişik ağ
PermissionsGerekmiyor
UserGerekmiyor

Official Sources and Advisories

https://support.hpe.com/hpesc/public/docDisplay?docId=hpesbns05148en_us&docLocale=en_USvendor-advisory

CVSS Vector Radar Chart

6.4 / 10
Attack VectorAdjacentComplexityHighPrivilegesNoneUser Interact.NoneConfidentialityHighIntegrityNoneAvailabilityHigh

Vulnerability Scoring Details

CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:H
Attack VectorAdjacent network
Attack ComplexityHigh
Privileges RequiredNone required
User InteractionNone required
Confidentiality (Gizlilik)High
Integrity (Bütünlük)None
Availability (Erişilebilirlik)High

Yama durumu bilinmiyor

İncelenen resmî kaynaklarda yama durumu doğrulanamadı. Bu sonuç “yama yok” anlamına gelmez.

Follow the vendor

HP
Hewlett Packard Enterprise logo
Hewlett Packard Enterprise

Weakness Type (CWE & CAPEC)

CWE-125

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