CVE-2021-26735
CVE-2021-26735 is a medium-severity vulnerability in Zscaler Client Connector with a CVSS 3.x base score of 6.7. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-428.
Key facts
- Severity: Medium (CVSS 3.x base score 6.7)
- EPSS exploit prediction: 0% (3rd percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-428
- Affected product: Zscaler Client Connector
- Published:
- Last modified:
Description
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.
Frequently asked questions
- What is 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.
- How severe is CVE-2021-26735?
- CVE-2021-26735 has a CVSS 3.x base score of 6.7, rated medium severity. It is exploitable over local access with high attack complexity, requires low privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2021-26735 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (3rd percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2021-26735?
- CVE-2021-26735 affects Zscaler Client Connector. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2021-26735?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2021-26735 published?
- CVE-2021-26735 was published on 2023-10-23 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:zscaler:client_connector:*:*:*:*:*:windows:*:*
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