CVE-2023-30903

Local service interruption

Published Jun 16, 2023 · Updated Dec 17, 2024

Denial of service in Hewlett Packard Enterprise HP-UX 11 before PHNE_44929 allows local users to interrupt service through IPv6. HPE has not disclosed the specific IPv6-stack locus or the operation that mishandles input or resources. Exploitation requires local low-privileged access and at least one physical interface configured with IPv6; the bounded impact is availability loss.

CVSS severity5.5
Medium
EPSS probability0.18%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial of service in Hewlett Packard Enterprise HP-UX 11 before PHNE_44929 allows local users to interrupt service through IPv6. HPE has not disclosed the specific IPv6-stack locus or the operation that mishandles input or resources. Exploitation requires local low-privileged access and at least one physical interface configured with IPv6; the bounded impact is availability loss.

The record

CVE
CVE-2023-30903
Published
Jun 16, 2023
Updated
Dec 17, 2024
Vendor
Hewlett Packard Enterprise (HPE)
Product
HP-UX
Classifications
CWE-770, T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 16, 2023CVE publishedPublication date reported by the CVE source.
  2. Dec 17, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=HP-UX 11 prior to PHNE_44929

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Hewlett Packard Enterprise (HPE) · HP-UXversion=HP-UX 11 prior to PHNE_44929

Published CVSS scores

5.5NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-770Allocation of Resources Without Limits or Throttling
T1499Endpoint Denial of Service

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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