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CVE-2021-27771

HCL Sametime is susceptible a file transfer service vulnerability

HIGH
7.6
CVSS Score
Published: May 12, 2022 at 09:25 PM UTC
Updated: June 17, 2026 at 03:45 AM UTC
1 product affected across 1 vendorSametime

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Severity
HIGH7.6
Exploit prediction
EPSS 0.7%

Description

User SID can be modified resulting in an Arbitrary File Upload or deletion of directories causing a Denial of Service. When interacting in a normal matter with the Sametime chat application, users hold a cookie containing their session ID (SID). This value is also used when sending chat messages, receiving notifications and/or transferring files.

Affected

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

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)

x_refsource_MISCVendor Advisory
Source: [email protected]
https://support.hcltechsw.com/csm?id=kb_article&sysparm_article=KB0097430

CVSS

7.6HIGH[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
LOW
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-22CWE-434

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