What is CVE-2023-28010?

CVE-2023-28010 is a medium-severity vulnerability in Hcl Software Domino Server, classified under Information Disclosure. CVSS score: 4.0/10. Published 2023-09-08.

How severe is CVE-2023-28010?

Medium severity. CVSS v3 base score is 4.0 out of 10.

Information disclosure in Hcl Software Domino Server

CVE-2023-28010

In some configuration scenarios, the Domino server host name can be exposed. This information could be used to target future attacks.

Vulnerability class: Information Disclosure

Published 2023-09-08 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 4.0 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:N/A:N.

EPSS exploit prediction

EPSS: 0.004 (31.0th percentile), scored 2026-10-02.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 31st percentile — 31.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.004 · change: +0.001

Affected products

Hcl Software Domino Server — versions 12.0.2, 12.0.2FP1
Hcltech Domino — versions 12.0.2

Weakness classification (CWE)

CWE-200 — Information Disclosure

References

support.hcltechsw.com/csm (Vendor Advisory)

Frequently asked questions

What is CVE-2023-28010?: CVE-2023-28010 is a medium-severity vulnerability in Hcl Software Domino Server, classified under Information Disclosure. CVSS score: 4.0/10. Published 2023-09-08.
How severe is CVE-2023-28010?: Medium severity. CVSS v3 base score is 4.0 out of 10.