What is CVE-2025-31966?

CVE-2025-31966 is a low-severity vulnerability in Hcl Sametime, classified under Improper Input Validation. CVSS score: 2.7/10. Published 2026-03-17.

How severe is CVE-2025-31966?

Low severity. CVSS v3 base score is 2.7 out of 10.

Improper input validation in Hcl Sametime

CVE-2025-31966

HCL Sametime is vulnerable to broken server-side validation. While the application performs client-side input checks, these are not enforced by the web server. An attacker can bypass these restrictions by sending manipulated HTTP requests…

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

EPSS: 0.001 (19.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 2.7 (Low). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N.

Affected products

Hcl Sametime — versions Version 2.0.2 FP2 and older

Weakness classification (CWE)

CWE-20 — Improper Input Validation

References

support.hcl-software.com/csm

Frequently asked questions

What is CVE-2025-31966?: CVE-2025-31966 is a low-severity vulnerability in Hcl Sametime, classified under Improper Input Validation. CVSS score: 2.7/10. Published 2026-03-17.
How severe is CVE-2025-31966?: Low severity. CVSS v3 base score is 2.7 out of 10.