Zscaler Client Connector up to 4.3.0 on Windows ZSATray previousInstallerName path traversal
| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 6.7 | $0-$5k | 0.00 |
Summary
A vulnerability, which was classified as critical, was found in Zscaler Client Connector on Windows. Affected by this vulnerability is an unknown functionality of the component ZSATray. The manipulation of the argument previousInstallerName results in path traversal. This vulnerability is cataloged as CVE-2023-41973. The attack must be initiated from a local position. There is no exploit available. You should upgrade the affected component.
Details
A vulnerability classified as critical has been found in Zscaler Client Connector on Windows. Affected is some unknown functionality of the component ZSATray. The manipulation of the argument previousInstallerName with an unknown input leads to a path traversal vulnerability. CWE is classifying the issue as CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:
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.
The advisory is available at help.zscaler.com. This vulnerability is traded as CVE-2023-41973 since 09/06/2023. The exploitability is told to be easy. Local access is required to approach this attack. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1006 by the MITRE ATT&CK project.
Upgrading to version 4.3.0.121 eliminates this vulnerability.
If you want to get best quality of vulnerability data, you may have to visit VulDB.
Product
Vendor
Name
Version
- 1.3.1.6
- 1.4
- 1.4.0.105
- 2.1.2.74
- 2.1.2.105
- 2.1.2.150
- 3.1.0
- 3.4
- 3.4.0.124
- 3.6
- 3.7
- 3.7.0.172
- 3.9
- 4.1
- 4.1.0.62
- 4.2
- 4.2.0.149
- 4.2.0.190
- 4.2.0.209
- 4.2.0.241
- 4.2.1
- 4.3.0
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔍VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 6.8VulDB Meta Temp Score: 6.7
VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 7.8
NVD Vector: 🔍
CNA Base Score: 7.3
CNA Vector (Zscaler, Inc.): 🔍
CVSSv2
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| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
Exploiting
Class: Path traversalCWE: CWE-22
CAPEC: 🔍
ATT&CK: 🔍
Physical: Partially
Local: Yes
Remote: No
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
| 0-Day | Unlock | Unlock | Unlock | Unlock |
|---|---|---|---|---|
| Today | Unlock | Unlock | Unlock | Unlock |
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔍
Upgrade: Client Connector 4.3.0.121
Timeline
09/06/2023 🔍03/26/2024 🔍
03/26/2024 🔍
10/10/2025 🔍
Sources
Advisory: help.zscaler.comStatus: Confirmed
CVE: CVE-2023-41973 (🔍)
GCVE (CVE): GCVE-0-2023-41973
GCVE (VulDB): GCVE-100-257994
Entry
Created: 03/26/2024 16:08Updated: 10/10/2025 16:58
Changes: 03/26/2024 16:08 (64), 05/05/2024 02:47 (1), 10/10/2025 16:58 (14)
Complete: 🔍
Cache ID: 216::103
If you want to get best quality of vulnerability data, you may have to visit VulDB.
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