CVE-2026-59566: CWE-229 Improper handling of values in Zscaler Client Connector
A locally exploitable buffer overflow bug can cause a local denial-of-service attack on affected versions of Zscaler Client Connector on Android and ChromeOS.
AI Analysis
Technical Summary
This vulnerability, identified as CWE-229 (Improper Handling of Values), exists in Zscaler Client Connector on Android and ChromeOS platforms. It allows a local attacker to trigger a buffer overflow, resulting in a denial-of-service condition. The CVSS 3.1 score is 8.4, indicating high severity with impact on confidentiality, integrity, and availability. The vulnerability requires local access and no privileges or user interaction. No vendor advisory or patch information is currently available.
Potential Impact
Successful exploitation can cause a denial-of-service on affected devices by triggering a buffer overflow. The CVSS vector indicates high impact on confidentiality, integrity, and availability, though the attack is local and requires no privileges or user interaction. There is no evidence of active exploitation in the wild.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, limit local access to trusted users and monitor for unusual application behavior. Follow vendor updates for official patches or mitigations.
CVE-2026-59566: CWE-229 Improper handling of values in Zscaler Client Connector
Description
A locally exploitable buffer overflow bug can cause a local denial-of-service attack on affected versions of Zscaler Client Connector on Android and ChromeOS.
CVSS v3.1
Score 8.4high
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability, identified as CWE-229 (Improper Handling of Values), exists in Zscaler Client Connector on Android and ChromeOS platforms. It allows a local attacker to trigger a buffer overflow, resulting in a denial-of-service condition. The CVSS 3.1 score is 8.4, indicating high severity with impact on confidentiality, integrity, and availability. The vulnerability requires local access and no privileges or user interaction. No vendor advisory or patch information is currently available.
Potential Impact
Successful exploitation can cause a denial-of-service on affected devices by triggering a buffer overflow. The CVSS vector indicates high impact on confidentiality, integrity, and availability, though the attack is local and requires no privileges or user interaction. There is no evidence of active exploitation in the wild.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, limit local access to trusted users and monitor for unusual application behavior. Follow vendor updates for official patches or mitigations.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Zscaler
- Date Reserved
- 2026-07-06T06:18:59.633Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a8c504bacd9273b49a22810
Added to database: 08/24/2026, 14:08:11 UTC
Last enriched: 08/24/2026, 14:22:43 UTC
Last updated: 08/24/2026, 22:31:35 UTC
Views: 11
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