Vulnerability identifier: #VU53759

Vulnerability risk: Low

CVSSv3.1: 4.2 [CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-1536

CWE-ID: CWE-427

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Cisco Webex Meetings Client for Windows
Client/Desktop applications / Office applications
Cisco Webex Teams
Client/Desktop applications / Office applications
Cisco WebEx Meetings Server
Server applications / Conferencing, Collaboration and VoIP solutions
Cisco WebEx Network Recording Player
Client/Desktop applications / Multimedia software

Vendor:

Description

The vulnerability allows a local user to compromise vulnerable system.

The vulnerability exists due to incorrect handling of directory paths at run time. A local user can place a specially crafted .dll file and execute arbitrary code on victim's system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

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External links
http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-webex-dll-inject-XNmcSGTU

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Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.