How severe is CVE-2023-41973?

CVE-2023-41973 has a CVSS 3.x base score of 7.3, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability low.

Is CVE-2023-41973 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (23rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-41973?

CVE-2023-41973 affects Zscaler Client Connector. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-41973?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2023-41973 have an EU (EUVD) identifier?

Yes. CVE-2023-41973 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-46432.

When was CVE-2023-41973 published?

CVE-2023-41973 was published on 2024-03-26 and last updated on 2026-06-17.

CVE-2023-41973

CVE-2023-41973 is a high-severity vulnerability in Zscaler Client Connector with a CVSS 3.x base score of 7.3. 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-22.

Key facts

Severity: High (CVSS 3.x base score 7.3)
EPSS exploit prediction: 0% (23rd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2023-46432
Weakness: CWE-22
Affected product: Zscaler Client Connector
Published: 2024-03-26
Last modified: 2026-06-17

Description

ZSATray passes the previousInstallerName as a config parameter to TrayManager, and TrayManager constructs the path and appends previousInstallerName to get the full path of the exe. Fixed Version: Win ZApp 4.3.0.121 and later.

Frequently asked questions

What is CVE-2023-41973?: ZSATray passes the previousInstallerName as a config parameter to TrayManager, and TrayManager constructs the path and appends previousInstallerName to get the full path of the exe. Fixed Version: Win ZApp 4.3.0.121 and later.
How severe is CVE-2023-41973?: CVE-2023-41973 has a CVSS 3.x base score of 7.3, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability low.
Is CVE-2023-41973 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (23rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-41973?: CVE-2023-41973 affects Zscaler Client Connector. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-41973?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2023-41973 have an EU (EUVD) identifier?: Yes. CVE-2023-41973 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-46432.
When was CVE-2023-41973 published?: CVE-2023-41973 was published on 2024-03-26 and last updated on 2026-06-17.

References

https://help.zscaler.com/client-connector/client-connector-app-release-summary-2023?applicable_category=Windows&applicable_version=4.3.0.121&deployment_date=2023-09-01&id=1463196

Affected products (1)

cpe:2.3:a:zscaler:client_connector:*:*:*:*:*:windows:*:*

More vulnerabilities in Zscaler Client Connector

CVE-2020-11633 — Critical (CVSS 9.8): The Zscaler Client Connector for Windows prior to 2.1.2.74 had a stack based buffer overflow when connecting to…
CVE-2024-23463 — High (CVSS 8.8): Anti-tampering protection of the Zscaler Client Connector can be bypassed under certain conditions when running the…
CVE-2023-28804 — High (CVSS 8.2): An Improper Verification of Cryptographic Signature vulnerability in Zscaler Client Connector on Linux allows replacing…
CVE-2023-28799 — High (CVSS 8.2): A URL parameter during login flow was vulnerable to injection. An attacker could insert a malicious domain in this…
CVE-2023-28800 — High (CVSS 8.1): When using local accounts for administration, the redirect url parameter was not encoded correctly, allowing for an XSS…
CVE-2024-23456 — High (CVSS 7.8): Anti-tampering can be disabled under certain conditions without signature validation. This affects Zscaler Client…

All CVEs affecting Zscaler Client Connector →

Other CWE-22 (Path Traversal) vulnerabilities

CVE-2026-48282 — Critical (CVSS 10.0): ColdFusion versions 2025.9, 2023.20 and earlier are affected by an Improper Limitation of a Pathname to a Restricted…
CVE-2026-54917 — Critical (CVSS 10.0): SeaweedFS is a distributed storage system for object storage (S3), file systems, and Iceberg tables. Prior to 4.30, the…
CVE-2026-11429 — Critical (CVSS 10.0): Two endpoints in the Vault Service ScriptsController, shared by Altium Enterprise Server and Altium 365, accept file…
CVE-2026-34909 — Critical (CVSS 10.0): A malicious actor with access to the network could exploit a Path Traversal vulnerability found in UniFi OS devices to…
CVE-2026-7411 — Critical (CVSS 10.0): In Eclipse BaSyx Java Server SDK versions prior to 2.0.0-milestone-10, inadequate path normalization in the Submodel…
CVE-2026-36767 — Critical (CVSS 10.0): A path traversal vulnerability in the /content/images/add endpoint of shopizer v3.2.5 allows attackers write arbitrary…

Browse all CWE-22 (Path Traversal) vulnerabilities →