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CVE-2026-76666

HPE NonStop EXPAND - Out-of-Bounds memory read

CVSS score

4.7

EPSS probability

—

Risk score

0.5

Published

12 h ago

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

The stored explanation is shown at once; refreshing evaluates the sources again.

DayBreach AI Explanation

Verified against sources

Out-of-bounds Read Vulnerability in HPE NonStop EXPAND (CVE-2026-76666)

Sources read

1

Source agreement

Tam uyum

Evidence confidence

%55

Short explanation

A security vulnerability in HPE NonStop EXPAND allows out-of-bounds memory reads (CVE‑2026‑76666). It has a CVSS base score of 4.7 (MEDIUM). No evidence of active exploitation exists and the patch status is unknown.

Why does it matter?

The flaw can lead to confidentiality impact, potentially exposing sensitive data.

What should be done?

  • Monitor the vendor security advisory
  • Apply a patch when one becomes available
  • Temporarily disable the affected functionality if possible
Chain of evidence and sources3 verified claims

CVE-2026-76666, HPE NonStop EXPAND’da out-of-bounds okuma açığıdır.

CISA KEV listesinde bu açık için aktif istismar kanıtı bulunmamaktadır.

Resmi kaynaklarda yama durumu doğrulanamadığı için yama durumu UNKNOWN olarak rapor edilmiştir.

Show the technical text from the sources

A security vulnerability in HPE NonStop EXPAND may result in out-of-bounds memory read.

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

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-2026-76666 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
4.7CVSS V3_1MEDIUMCVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:LCVE CNA
4.7CVSS V31MEDIUMCVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:LNVD

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-2026-76666 is associated with the following CWEs:

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-2026-76666 weaknesses.

Attack Vector and Accessibility

ExposureYerel erişim
PermissionsHigh
UserGerekmiyor

Official Sources and Advisories

CVSS Vector Radar Chart

4.7 / 10
Attack VectorLocalComplexityHighPrivilegesHighUser Interact.NoneConfidentialityHighIntegrityNoneAvailabilityLow

Vulnerability Scoring Details

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

Yama durumu bilinmiyor

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

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Weakness Type (CWE & CAPEC)

Similar Vulnerabilities

Get this vulnerability through the API

Affected products, version ranges, exploitation status and patch information in a single request, with a free key.

curl -H "x-api-key: $DAYBREACH_API_KEY" \
  "https://api.daybreach.dev/api/v1/intel/cves/CVE-2026-76666"