CVE-2026-76665
HIGH 7.1A security vulnerability in HPE NonStop EXPAND may cause out-of-bounds memory read resulting in buffer overflow.
ELEVATED IMPACT
Severe if exploited (CVSS 7.1), but no known exploitation and low modeled probability. Patch on a normal cadence.
Exploitation likelihood
0.2%chance of exploitation in 30 days · 5th percentile
○ In CISA KEV
○ Catalogued PoC
Impact if exploited
7.1CVSS 3.1 · HIGH
- ConfidentialityLow
- IntegrityHigh
- AvailabilityHigh
What an attacker needs
- ⚠Access: Must sit on the same / adjacent network
- ✓Privileges: No account or privileges required
- ✓User interaction: No user interaction needed
- ⚠Complexity: Needs a race window or specific setup
✓ lowers the bar for an attacker · ⚠ raises it
Proof of concept
No public PoC is currently catalogued.
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Data snapshot:
Weakness (CWE)
- CWE-125: Out-of-bounds read
CVSS vector
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:H
References and research data (JSON)
All CVSS metrics
- HIGH 7.1 v3.1 · CNA Primary
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:H - HIGH 7.1 v3.1 · NVD Secondary
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:H
References
Advisories
- https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-101826 EUVD · EUVD-2026-101826
Technical & other
- https://support.hpe.com/hpesc/public/docDisplay?docId=hpesbns05148en_us&docLocale=en_USCVE record · hpe · Updated 2026-10-15T04:45:11.217Z
NVD · CVE-2026-76665 · Updated 2026-10-15T16:23:06.250