Vulnerability Details : CVE-2021-26737
The Zscaler Client Connector for macOS prior to 3.6 did not sufficiently validate RPC clients. A local adversary without sufficient privileges may be able to shutdown the Zscaler tunnel by exploiting a race condition.
Products affected by CVE-2021-26737
- cpe:2.3:a:zscaler:client_connector:*:*:*:*:*:macos:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-26737
0.04%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 7 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-26737
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.5
|
MEDIUM | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
1.8
|
3.6
|
Zscaler, Inc. | |
|
4.7
|
MEDIUM | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H |
1.0
|
3.6
|
NIST |
CWE ids for CVE-2021-26737
-
The product does not properly verify that the source of data or communication is valid.Assigned by:
- cve@zscaler.com (Secondary)
- nvd@nist.gov (Primary)
References for CVE-2021-26737
-
https://help.zscaler.com/client-connector/client-connector-app-release-summary-2022?applicable_category=macOS&applicable_version=3.6&deployment_date=2022-01-07&id=1388686
Client Connector App Release Summary (2022) | ZscalerRelease Notes
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