CVE-2021-1544: 
Cisco Webex Meetings vulnerability analysis and mitigation

A vulnerability in logging mechanisms of Cisco Webex Meetings client software (CVE-2021-1544) was discovered that could allow an authenticated, local attacker to gain access to sensitive information. The vulnerability affects Cisco Webex Meetings client software releases earlier than Release 41.4 and was disclosed on June 2, 2021. The issue stems from unsafe logging of application actions (Cisco Advisory).

The vulnerability has been assigned a CVSS 3.1 Base Score of 5.5 (Medium) with the vector string CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N. The vulnerability is classified under CWE-497 (Exposure of Sensitive System Information to an Unauthorized Control Sphere). The technical issue arises from insufficient security measures in the application's logging functionality, which could expose sensitive information in log files (NVD, Cisco Advisory).

A successful exploitation of this vulnerability could allow an attacker to gain access to sensitive information, including meeting data and recorded meeting transcriptions. The impact is limited to confidentiality, with no direct effect on system integrity or availability (Cisco Advisory).

Cisco has released software updates that address this vulnerability in Webex Meetings client software Release 41.4 and later versions. No workarounds are available for this vulnerability, making it essential to update to a fixed version (Cisco Advisory).