What is CVE-2022-42446?

CVE-2022-42446 is a medium-severity vulnerability in Hcl Software Sametime, classified under Incorrect Default Permissions. CVSS score: 6.5/10. Published 2022-12-12.

How severe is CVE-2022-42446?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Vulnerability in Hcl Software Sametime

CVE-2022-42446

Starting with Sametime 12, anonymous users are enabled by default. After logging in as an anonymous user, one has the ability to browse the User Directory and potentially create chats with internal users.

Published 2022-12-12 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L.

EPSS exploit prediction

EPSS: 0.004 (30.5th percentile), scored 2026-09-28.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 31st percentile — 30.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: +0.000

Affected products

Hcl Software Sametime — versions 12.0, 12.0FP1
Hcltech Sametime — versions 12.0

Weakness classification (CWE)

CWE-276 — Incorrect Default Permissions

References

support.hcltechsw.com/csm (Mitigation, Vendor Advisory)

Frequently asked questions

What is CVE-2022-42446?: CVE-2022-42446 is a medium-severity vulnerability in Hcl Software Sametime, classified under Incorrect Default Permissions. CVSS score: 6.5/10. Published 2022-12-12.
How severe is CVE-2022-42446?: Medium severity. CVSS v3 base score is 6.5 out of 10.