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VulnerabilityPublished Updated

CVE-2026-76731: Hewlett Packard Enterprise (HPE) Instant ON · Improper Privilege Management

Affects Hewlett Packard Enterprise (HPE) Instant ONSource CVE Database V5

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Not known to be exploited · CVSS 6.5 Medium.

Data as of 12 Nov 2026, 23:24 UTC

CVSS 3.1 base score
6.5Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.3% chance of exploitation in 30 days – higher than 24% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 29 Sep 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 13 Nov 2026.

What to do

Affected software

ProductAffectedFixed in
Hewlett Packard Enterprise (HPE)Instant ONAffected
  • <=3.4.1.0
Fixed in–

AI-suggested

Users should monitor HPE advisories for updates and apply patches once available.

Description

CVE-2026-76731 is an authentication bypass vulnerability in the captive portal of Hewlett Packard Enterprise (HPE) Networking Instant On. It allows an unauthenticated remote attacker to circumvent authentication controls, potentially gaining limited access to some data and making limited changes within the affected component. The vulnerability affects versions up to and including 3.4.1.0. The CVSS 3.1 base score is 6.5, indicating a medium severity level.

References

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