VULNERABILITY INTELLIGENCE

CVE-2021-27771

CVSS score8.2 HIGH
EPSS probability0.73%
CISA KEVNot currently listed
Published2022-05-12
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:H

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.

Weakness classification

  • psirt@hcl.com: CWE-22
  • nvd@nist.gov: CWE-434

Primary references