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CVE-2023-45718

HCL Sametime is impacted by a failure to invalidate sessions

HIGH
7.5
CVSS Score
Published: February 9, 2024 at 09:22 PM UTC
Updated: June 17, 2026 at 06:29 AM UTC
1 product affected across 1 vendorSametime

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Severity
HIGH7.5
Exploit prediction
EPSS 0.4%
SSVC
No known exploit

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Sametime· Hcltech
95%
11.5 ≤ v < 12.0.211.5, 11.6, 11.6 IF1, 12.0, 12.0 FP1, 12.0.1, 12.0.1 FP1
Affected range stops below 12.0.2, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

Vendor Advisory
Source: [email protected]
https://support.hcltechsw.com/csm?id=kb_article&sysparm_article=KB0109082

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.5HIGH[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-384CWE-613

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