What is CVE-2023-30903?

CVE-2023-30903 is a medium-severity vulnerability in Hewlett Packard Enterprise (HPE) Hp-Ux, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 5.5/10. Published 2023-06-16.

How severe is CVE-2023-30903?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Resource exhaustion in Hewlett Packard Enterprise (HPE) Hp-Ux

CVE-2023-30903

HP-UX could be exploited locally to create a Denial of Service (DoS) when any physical interface is configured with IPv6/inet6.

Published 2023-06-16 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.002 (6.7th percentile), scored 2026-10-03.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 7th percentile — 6.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000

Affected products

Hewlett Packard Enterprise (HPE) Hp-Ux — versions HP-UX 11 prior to PHNE_44929
HP Hp-Ux

Weakness classification (CWE)

CWE-770 — Allocation of Resources Without Limits or Throttling

References

support.hpe.com/hpesc/public/docDisplay (Vendor Advisory)

Frequently asked questions

What is CVE-2023-30903?: CVE-2023-30903 is a medium-severity vulnerability in Hewlett Packard Enterprise (HPE) Hp-Ux, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 5.5/10. Published 2023-06-16.
How severe is CVE-2023-30903?: Medium severity. CVSS v3 base score is 5.5 out of 10.