What is CVE-2023-45718?

CVE-2023-45718 is a low-severity vulnerability in Hcl Software Sametime, classified under Session Fixation. CVSS score: 3.9/10. Published 2024-02-09.

How severe is CVE-2023-45718?

Low severity. CVSS v3 base score is 3.9 out of 10.

Vulnerability in Hcl Software Sametime

CVE-2023-45718

Sametime is impacted by a failure to invalidate sessions. The application is setting sensitive cookie values in a persistent manner in Sametime Web clients. When this happens, cookie values can remain valid even after a user has closed out their session.

Published 2024-02-09 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 3.9 (Low). Vector: CVSS:3.1/AV:P/AC:H/PR:L/UI:R/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.004 (26.6th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 27th percentile — 26.6% 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 11.5, 11.6, 11.6 IF1, 12.0, 12.0 FP1, 12.0.1, 12.0.1 FP1
Hcltech Sametime

Weakness classification (CWE)

References

support.hcltechsw.com/csm (Vendor Advisory)

Frequently asked questions

What is CVE-2023-45718?: CVE-2023-45718 is a low-severity vulnerability in Hcl Software Sametime, classified under Session Fixation. CVSS score: 3.9/10. Published 2024-02-09.
How severe is CVE-2023-45718?: Low severity. CVSS v3 base score is 3.9 out of 10.