Vulnerability Details : CVE-2021-26735
The Zscaler Client Connector Installer and Unsintallers for Windows prior to 3.6 had an unquoted search path vulnerability. A local adversary may be able to execute code with SYSTEM privileges.
Vulnerability category: Execute code
Products affected by CVE-2021-26735
- cpe:2.3:a:zscaler:client_connector:*:*:*:*:*:windows:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-26735
0.06%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 21 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-26735
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
6.7
|
MEDIUM | CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H |
0.8
|
5.9
|
Zscaler, Inc. | |
|
7.8
|
HIGH | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
1.8
|
5.9
|
NIST |
CWE ids for CVE-2021-26735
-
The product does not properly verify that the source of data or communication is valid.Assigned by: cve@zscaler.com (Secondary)
-
The product uses a search path that contains an unquoted element, in which the element contains whitespace or other separators. This can cause the product to access resources in a parent path.Assigned by: nvd@nist.gov (Primary)
References for CVE-2021-26735
-
https://help.zscaler.com/zscaler-client-connector/client-connector-app-release-summary-2021
Client Connector App Release Summary (2021) | ZscalerRelease Notes
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