High severity · published Oct 8, 2020
CVE-2020-3535
Cisco Webex Teams Client for Windows DLL Hijacking Vulnerability
8.4
CVSS
0.6%
EPSS
No
On KEV
Description
A vulnerability in the loading mechanism of specific DLLs in the Cisco Webex Teams client for Windows could allow an authenticated, local attacker to load a malicious library. To exploit this vulnerability, the attacker needs valid credentials on the Windows system. The vulnerability is due to incorrect handling of directory paths at run time. An attacker could exploit this vulnerability by placing a malicious DLL file in a specific location on the targeted system. This file will execute when the vulnerable application launches. A successful exploit could allow the attacker to execute arbitrary code on the targeted system with the privileges of another user’s account.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.6% · higher than 48% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CW
Cisco Webex Teams · Cisco
All versions, or not specified · source: vendor
WT
Webex Teams · Cisco
3.0.13464.0 through 3.0.16040.0 · source: NVD
Affected product
CW
Cisco Webex Teams
Cisco
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