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CVE-2021-27770

nvd nist
Published: May 12, 2022Modified: Jun 17, 2026

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8.8
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Exploitability: 2.8 / Impact: 5.9
Source: NVD

Description

The vulnerability was discovered within the “FaviconService”. The service takes a base64-encoded URL which is then requested by the webserver. We assume this service is used by the “meetings”-function where users can specify an external URL where the online meeting will take place.

Affected (1)

Products: Hcltech: Sametime
Hcltech
1 product
Sametime
Configuration A
1 vulnerable
Vulnerable SoftwareAffected Versions
Sametime
Version 11.6

Related CWEs

CWE-472
External Control of Assumed-Immutable Web Parameter
The web application does not sufficiently verify inputs that are assumed to be immutable but are actually externally controllable, such as hidden form fields.

References (2)

Source: psirt@hcl.com
Vendor Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory

Timeline

No history available yet.