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CVE-2026-59568 (GCVE-0-2026-59568)

Vulnerability from nvd – Published: 2026-08-24 13:44 – Updated: 2026-08-25 03:56

Title

Remote Code Execution

Summary

Multiple vulnerabilities on affected versions of Zscaler Client Connector allow remote code execution, giving an unauthenticated, unprivileged user the ability to execute arbitrary code in the ZCC context.

Severity

9.1 (Critical)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

SSVC

Exploitation: none Automatable: yes Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-24 00:00 UTC

CWE

CWE-20 - Improper input validation

Assigner

Zscaler mitre root

References

1 reference

URL	Tags
https://help.zscaler.com/zscaler-client-connector…

Impacted products

1 product

Vendor	Product	Version
Zscaler	Client Connector	Affected: 0 , < Windows: 4.6.0.457, 4.7.0.317, 4.8.0.232, 4.9.0.372 (custom) Affected: 0 , < MacOS: 4.5.2.312, 4.7.0.292, 4.8.0.191 (custom) Affected: 0 , < Linux: 3.7.2.64, 4.2.1.64 (custom) Affected: 0 , < Android: 4.2 (custom) Affected: 0 , < ChromeOS: 4.2 (custom) Affected: 0 , < iOS: 4.5.1 (custom)

Date Public

2026-08-21 09:48

Show details on NVD website

JSON

To clipboard

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CVE-2026-59567 (GCVE-0-2026-59567)

Vulnerability from nvd – Published: 2026-08-24 13:41 – Updated: 2026-08-25 03:56

Title

Local privilege escalation

Summary

Multiple vulnerabilities on affected versions of Zscaler Client Connector allow local privilege escalation, giving an unprivileged user the ability to execute arbitrary code in a privileged context.

Severity

8.8 (High)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-24 00:00 UTC

CWE

CWE-280 - Improper handling of insufficient permissions or privileges

Assigner

Zscaler mitre root

References

1 reference

URL	Tags
https://help.zscaler.com/zscaler-client-connector…

Impacted products

1 product

Vendor	Product	Version
Zscaler	Client Connector	Affected: 0 , < Windows: 4.6.0.457, 4.7.0.317, 4.8.0.232, 4.9.0372 (custom) Affected: 0 , < MacOS: 4.5.2.312, 4.7.0.292, 4.8.0.191 (custom) Affected: 0 , < Linux: 3.7.2.64, 4.2.1.64 (custom)

Date Public

2026-08-21 09:48

Show details on NVD website

JSON

To clipboard

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CVE-2026-59566 (GCVE-0-2026-59566)

Vulnerability from nvd – Published: 2026-08-24 13:41 – Updated: 2026-08-24 15:17

Title

Local denial-of-service

Summary

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.

Severity

8.4 (High)


                        
                          CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-24 15:17 UTC

CWE

CWE-229 - Improper handling of values

Assigner

Zscaler mitre root

References

1 reference

URL	Tags
https://help.zscaler.com/zscaler-client-connector…

Impacted products

1 product

Vendor	Product	Version
Zscaler	Client Connector	Affected: 0 , < Android: 4.2 (custom) Affected: 0 , < ChromeOS: 4.2 (custom)

Date Public

2026-08-21 09:48

Show details on NVD website

JSON

To clipboard

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CVE-2026-59565 (GCVE-0-2026-59565)

Vulnerability from nvd – Published: 2026-08-24 13:40 – Updated: 2026-08-24 15:18

Title

Local and kernel denial-of-service

Summary

A remotely exploitable buffer overflow bug can cause a local and kernel denial-of-service attack on affected versions of Zscaler Client Connector on Windows.

Severity

8.8 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-24 15:18 UTC

CWE

CWE-229 - Improper handling of values

Assigner

Zscaler mitre root

References

1 reference

URL	Tags
https://help.zscaler.com/zscaler-client-connector…

Impacted products

1 product

Vendor	Product	Version
Zscaler	Client Connector	Affected: 0 , < Windows: 4.6.0.457, 4.7.0.317, 4.8.0.232, 4.9.0.372 (custom)

Date Public

2026-08-21 09:48

Show details on NVD website

JSON

To clipboard

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CVE-2026-59564 (GCVE-0-2026-59564)

Vulnerability from nvd – Published: 2026-08-24 13:39 – Updated: 2026-08-25 03:56

Title

Authentication bypass between ZCC and client connector portal

Summary

An authentication bypass issue exists in communications between affected versions of the Zscaler Client Connector and the Zscaler Client Connector Portal.

Severity

9.1 (Critical)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

SSVC

Exploitation: none Automatable: yes Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-24 00:00 UTC

CWE

CWE-304 - Missing critical step in authentication

Assigner

Zscaler mitre root

References

1 reference

URL	Tags
https://help.zscaler.com/zscaler-client-connector…

Impacted products

1 product

Vendor	Product	Version
Zscaler	Client Connector	Affected: 0 , < Windows: 4.6.0.457, 4.7.0.317, 4.8.0.232, 4.9.0.372 (custom) Affected: 0 , < MacOS: 4.5.2.312, 4.7.0.292, 4.8.0.191 (custom) Affected: 0 , < iOS: 4.5.1 (custom) Affected: 0 , < Android: 4.2 (custom) Affected: 0 , < ChromeOS: 4.2 (custom) Affected: 0 , < Linux: 3.7.2.64, 4.2.1.64 (custom)

Date Public

2026-08-21 09:48

Show details on NVD website

JSON

To clipboard

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CVE-2026-22569 (GCVE-0-2026-22569)

Vulnerability from nvd – Published: 2026-03-31 14:54 – Updated: 2026-03-31 17:24

Title

Incorrect startup configuration in ZCC

Summary

An incorrect startup configuration of affected versions of Zscaler Client Connector on Windows may cause a limited amount of traffic from being inspected under rare circumstances.

Severity

5.4 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-03-31 17:24 UTC

CWE

CWE-1289 - Improper validation of unsafe equivalence in input

Assigner

Zscaler mitre root

References

1 reference

URL	Tags
https://help.zscaler.com/zscaler-client-connector…

Impacted products

1 product

Vendor	Product	Version
Zscaler	Zscaler Client Connector	Affected: 4.7 , < 4.7.0.141 (custom) Affected: 4.8 , < 4.8.0.63 (custom)

Credits

Jordan Eberst, CISA

Show details on NVD website

JSON

To clipboard

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CVE-2026-22568 (GCVE-0-2026-22568)

Vulnerability from nvd – Published: 2026-02-23 16:12 – Updated: 2026-02-23 18:47

Title

Unauthorized information retrieval in ZIA Admin UI

Summary

Improper neutralization of special elements in user-supplied input within the ZIA Admin UI could allow an authenticated administrator to access or retrieve unauthorized internal information in rare conditions.

Severity

5.5 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-02-23 18:46 UTC

CWE

CWE-20 - Improper Input Validation

Assigner

Zscaler mitre root

References

1 reference

URL	Tags
https://help.zscaler.com/zia/release-upgrade-summ…

Impacted products

1 product

Vendor	Product	Version
Zscaler	ZIA Admin UI	Affected: 6.2 , < 6.2r (custom)

Credits

Andrew Allen Hess on behalf of Cyber Defense Team (Deutsche Börse Group)

Show details on NVD website

JSON

To clipboard

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CVE-2026-22567 (GCVE-0-2026-22567)

Vulnerability from nvd – Published: 2026-02-23 16:13 – Updated: 2026-02-23 18:41

Title

ZIA Admin UI Input Validation Bug

Summary

Improper validation of user-supplied input in the ZIA Admin UI could allow an authenticated administrator to initiate backend functions through specific input fields in limited scenarios.

Severity

7.6 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:L/A:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-02-23 18:41 UTC

CWE

CWE-20 - Improper Input Validation

Assigner

Zscaler mitre root

References

1 reference

URL	Tags
https://help.zscaler.com/zia/release-upgrade-summ…

Impacted products

1 product

Vendor	Product	Version
Zscaler	ZIA Admin UI	Affected: 6.2 , < 6.2r (custom)

Credits

Andrew Allen Hess on behalf of Cyber Defense Team (Deutsche Börse Group)

Show details on NVD website

JSON

To clipboard

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CVE-2025-54983 (GCVE-0-2025-54983)

Vulnerability from nvd – Published: 2025-11-12 03:07 – Updated: 2025-11-12 18:18

Title

Health check port on ZCC allows tunnel bypass

Summary

A health check port on Zscaler Client Connector on Windows, versions 4.6 < 4.6.0.216 and 4.7 < 4.7.0.47, which under specific circumstances was not released after use, allowed traffic to potentially bypass ZCC forwarding controls.

Severity

5.2 (Medium)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-11-12 18:18 UTC

CWE

CWE-772 - Missing Release of Resource after Effective Lifetime

Assigner

Zscaler mitre root

References

1 reference

URL	Tags
https://help.zscaler.com/zscaler-client-connector…

Impacted products

1 product

Vendor	Product	Version
Zscaler	Zscaler Client Connector	Affected: 4.6 , < 4.6.0.216 (custom) Affected: 4.7 , < 4.7.0.47 (custom)

Credits

DTCC Team

Show details on NVD website

JSON

To clipboard

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CVE-2025-54982 (GCVE-0-2025-54982)

Vulnerability from nvd – Published: 2025-08-05 05:36 – Updated: 2026-02-26 17:49

Title

SAML 2.0 Public Key Validation Issue

Summary

An improper verification of cryptographic signature in Zscaler's SAML authentication mechanism on the server-side allowed an authentication abuse.

Severity

9.6 (Critical)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-08-19 03:55 UTC

CWE

CWE-347 - Improper Verification of Cryptographic Signature

Assigner

Zscaler mitre root

References

1 reference

URL	Tags
https://help.zscaler.com/zia/about-identity-providers

Impacted products

1 product

Vendor	Product	Version
Zscaler	Authentication Server	Affected: 0 , < 6.2r (custom)

Credits

Richard Warren, AmberWolf

Show details on NVD website

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To clipboard

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CVE-2024-31127 (GCVE-0-2024-31127)

Vulnerability from nvd – Published: 2025-06-04 04:45 – Updated: 2025-06-04 13:46

Title

MacOS Zscaler Client Connector Local Privilege Escalation

Summary

An improper verification of a loaded library in Zscaler Client Connector on Mac < 4.2.0.241 may allow a local attacker to elevate their privileges.

Severity

7.3 (High)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-06-04 13:35 UTC

CWE

CWE-346 - Origin Validation Error

Assigner

Zscaler mitre root

References

1 reference

URL	Tags
https://help.zscaler.com/zscaler-client-connector…

Impacted products

1 product

Vendor	Product	Version
Zscaler	Client Connector	Affected: 0 , < 4.2.0.241 (custom)

Credits

Max Keasley

Show details on NVD website

JSON

To clipboard

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CVE-2024-23483 (GCVE-0-2024-23483)

Vulnerability from nvd – Published: 2024-08-06 15:30 – Updated: 2024-08-06 18:08

Title

Local Privilege Escalation via lack of input validation

Summary

An Improper Input Validation vulnerability in Zscaler Client Connector on MacOS allows OS Command Injection. This issue affects Zscaler Client Connector on MacOS <4.2.

Severity

7 (High)


                        
                          CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-08-06 17:42 UTC

CWE

CWE-20 - Improper Input Validation

Assigner

Zscaler mitre root

References

1 reference

URL	Tags
https://help.zscaler.com/client-connector/client-…

Impacted products

2 products

Vendor	Product	Version
Zscaler	Client Connector	Affected: 0 , < 4.2 (custom)
zscaler	client_connector	Affected: 0 , < 4.2 (custom) cpe:2.3:a:zscaler:client_connector::::::macos::*

Credits

Singapore GovTech Red Team

Show details on NVD website

JSON

To clipboard

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CVE-2024-23464 (GCVE-0-2024-23464)

Vulnerability from nvd – Published: 2024-08-06 15:24 – Updated: 2024-08-06 15:41

Title

Zscaler bypass with administrative privileges on Windows

Summary

In certain cases, Zscaler Internet Access (ZIA) can be disabled by PowerShell commands with admin rights. This affects Zscaler Client Connector on Windows <4.2.1

Severity

7.2 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-08-06 15:38 UTC

CWE

CWE-281 - Improper Preservation of Permissions

Assigner

Zscaler mitre root

References

1 reference

URL	Tags
https://help.zscaler.com/client-connector/client-…

Impacted products

2 products

Vendor	Product	Version
Zscaler	Client Connector	Affected: 0 , < 4.2.1 (custom)
zscaler	client_connector	Affected: 0 , < 4.2.1 (custom) cpe:2.3:a:zscaler:client_connector::::::windows::*

Credits

Randstad N.V. Red Team

Show details on NVD website

JSON

To clipboard

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  "containers": {
    "adp": [
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        "affected": [
          {
            "cpes": [
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          "capecId": "CAPEC-554",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-554 Functionality Bypass"
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          "cvssV3_1": {
            "attackComplexity": "LOW",
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              "cweId": "CWE-281",
              "description": "CWE-281 Improper Preservation of Permissions",
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        "discovery": "UNKNOWN"
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      "title": "Zscaler bypass with administrative privileges on Windows",
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CVE-2024-23460 (GCVE-0-2024-23460)

Vulnerability from nvd – Published: 2024-08-06 15:29 – Updated: 2024-08-06 20:06

Title

Incorrect signature validation of package

Summary

The Zscaler Updater process does not validate the digital signature of the installer before execution, allowing arbitrary code to be locally executed. This affects Zscaler Client Connector on MacOS <4.2.

Severity

6.4 (Medium)


                        
                          CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-08-06 17:57 UTC

CWE

CWE-347 - Improper Verification of Cryptographic Signature

Assigner

Zscaler mitre root

References

1 reference

URL	Tags
https://help.zscaler.com/client-connector/client-…

Impacted products

2 products

Vendor	Product	Version
Zscaler	Client Connector	Affected: 0 , < 4.2 (custom)
zscaler	client_connector	Affected: 0 , < 4.2 (custom) cpe:2.3:a:zscaler:client_connector::::::macos::*

Credits

LMCO Red Team

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "affected": [
          {
            "cpes": [
              "cpe:2.3:a:zscaler:client_connector:*:*:*:*:*:macos:*:*"
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                "lessThan": "4.2",
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                    "Technical Impact": "total"
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        ],
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          "dateUpdated": "2024-08-06T20:06:58.896Z",
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        {
          "defaultStatus": "unaffected",
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            "MacOS"
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          "lang": "en",
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        {
          "capecId": "CAPEC-558",
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            {
              "lang": "en",
              "value": "CAPEC-558 Replace Trusted Executable"
            }
          ]
        }
      ],
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        {
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            "attackVector": "ADJACENT_NETWORK",
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            "integrityImpact": "HIGH",
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          "url": "https://help.zscaler.com/client-connector/client-connector-app-release-summary-2023?applicable_category=macos\u0026applicable_version=4.2"
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    "dateReserved": "2024-01-17T15:15:47.221Z",
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  },
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CVE-2024-23458 (GCVE-0-2024-23458)

Vulnerability from nvd – Published: 2024-08-06 15:22 – Updated: 2024-08-06 18:36

Title

Local Privilege Escalation on Zscaler Client Connector on Windows

Summary

While copying individual autoupdater log files, reparse point check was missing which could result into crafted attacks, potentially leading to a local privilege escalation. This issue affects Zscaler Client Connector on Windows <4.2.0.190.

Severity

7.3 (High)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-08-06 18:35 UTC

CWE

CWE-346 - Origin Validation Error

Assigner

Zscaler mitre root

References

1 reference

URL	Tags
https://help.zscaler.com/client-connector/client-…

Impacted products

2 products

Vendor	Product	Version
Zscaler	Client Connector	Affected: 0 , < 4.2.0.190 (custom)
zscaler	client_connector	Affected: 0 , < 4.2.0.190 (custom) cpe:2.3:a:zscaler:client_connector::::::windows::*

Credits

Equinor Red Team

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "affected": [
          {
            "cpes": [
              "cpe:2.3:a:zscaler:client_connector:*:*:*:*:*:windows:*:*"
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            "defaultStatus": "unknown",
            "product": "client_connector",
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                "lessThan": "4.2.0.190",
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                    "Technical Impact": "total"
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          "dateUpdated": "2024-08-06T18:36:26.478Z",
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          "defaultStatus": "unaffected",
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            "Windows"
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          "lang": "en",
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        {
          "capecId": "CAPEC-233",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-233 Privilege Escalation"
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          ]
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        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
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            "baseSeverity": "HIGH",
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CVE-2024-23456 (GCVE-0-2024-23456)

Vulnerability from nvd – Published: 2024-08-06 15:21 – Updated: 2024-08-06 15:44

Title

Signature validation issue leads to Anti-Tampering bypass

Summary

Anti-tampering can be disabled under certain conditions without signature validation. This affects Zscaler Client Connector <4.2.0.190 with anti-tampering enabled.

Severity

7.8 (High)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-08-06 15:42 UTC

CWE

CWE-347 - Improper Verification of Cryptographic Signature

Assigner

Zscaler mitre root

References

1 reference

URL	Tags
https://help.zscaler.com/client-connector/client-…

Impacted products

2 products

Vendor	Product	Version
Zscaler	Client Connector	Affected: 0 , < 4.2.0.190 (custom)
zscaler	client_connector	Affected: 0 , < 4.2.0.190 (custom) cpe:2.3:a:zscaler:client_connector::::::::

Credits

Equinor Red Team

Show details on NVD website

JSON

To clipboard

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  "containers": {
    "adp": [
      {
        "affected": [
          {
            "cpes": [
              "cpe:2.3:a:zscaler:client_connector:*:*:*:*:*:*:*:*"
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CVE-2023-28806 (GCVE-0-2023-28806)

Vulnerability from nvd – Published: 2024-08-06 15:41 – Updated: 2024-08-06 17:30

Title

Signature validation error in DLL allows disabling anti-tampering protection

Summary

An Improper Validation of signature in Zscaler Client Connector on Windows allows an authenticated user to disable anti-tampering. This issue affects Client Connector on Windows <4.2.0.190.

Severity

5.7 (Medium)


                        
                          CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:N

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-08-06 17:14 UTC

CWE

CWE-347 - Improper Verification of Cryptographic Signature

Assigner

Zscaler mitre root

References

1 reference

URL	Tags
https://help.zscaler.com/client-connector/client-…

Impacted products

2 products

Vendor	Product	Version
Zscaler	Client Connector	Affected: 0 , < 4.2.0.190 (custom)
zscaler	client_connector	Affected: 0 , < 4.2.0.190 (custom) cpe:2.3:a:zscaler:client_connector::::::windows::*

Credits

Equinor Red Team

Show details on NVD website

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To clipboard

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CVE-2026-59568 (GCVE-0-2026-59568)

Vulnerability from cvelistv5 – Published: 2026-08-24 13:44 – Updated: 2026-08-25 03:56

Title

Remote Code Execution

Summary

Multiple vulnerabilities on affected versions of Zscaler Client Connector allow remote code execution, giving an unauthenticated, unprivileged user the ability to execute arbitrary code in the ZCC context.

Severity

9.1 (Critical)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

SSVC

Exploitation: none Automatable: yes Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-24 00:00 UTC

CWE

CWE-20 - Improper input validation

Assigner

Zscaler mitre root

References

1 reference

URL	Tags
https://help.zscaler.com/zscaler-client-connector…

Impacted products

1 product

Vendor	Product	Version
Zscaler	Client Connector	Affected: 0 , < Windows: 4.6.0.457, 4.7.0.317, 4.8.0.232, 4.9.0.372 (custom) Affected: 0 , < MacOS: 4.5.2.312, 4.7.0.292, 4.8.0.191 (custom) Affected: 0 , < Linux: 3.7.2.64, 4.2.1.64 (custom) Affected: 0 , < Android: 4.2 (custom) Affected: 0 , < ChromeOS: 4.2 (custom) Affected: 0 , < iOS: 4.5.1 (custom)

Date Public

2026-08-21 09:48

Show details on NVD website

JSON

To clipboard

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CVE-2026-59567 (GCVE-0-2026-59567)

Vulnerability from cvelistv5 – Published: 2026-08-24 13:41 – Updated: 2026-08-25 03:56

Title

Local privilege escalation

Summary

Multiple vulnerabilities on affected versions of Zscaler Client Connector allow local privilege escalation, giving an unprivileged user the ability to execute arbitrary code in a privileged context.

Severity

8.8 (High)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-24 00:00 UTC

CWE

CWE-280 - Improper handling of insufficient permissions or privileges

Assigner

Zscaler mitre root

References

1 reference

URL	Tags
https://help.zscaler.com/zscaler-client-connector…

Impacted products

1 product

Vendor	Product	Version
Zscaler	Client Connector	Affected: 0 , < Windows: 4.6.0.457, 4.7.0.317, 4.8.0.232, 4.9.0372 (custom) Affected: 0 , < MacOS: 4.5.2.312, 4.7.0.292, 4.8.0.191 (custom) Affected: 0 , < Linux: 3.7.2.64, 4.2.1.64 (custom)

Date Public

2026-08-21 09:48

Show details on NVD website

JSON

To clipboard

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CVE-2026-59566 (GCVE-0-2026-59566)

Vulnerability from cvelistv5 – Published: 2026-08-24 13:41 – Updated: 2026-08-24 15:17

Title

Local denial-of-service

Summary

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.

Severity

8.4 (High)


                        
                          CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-24 15:17 UTC

CWE

CWE-229 - Improper handling of values

Assigner

Zscaler mitre root

References

1 reference

URL	Tags
https://help.zscaler.com/zscaler-client-connector…

Impacted products

1 product

Vendor	Product	Version
Zscaler	Client Connector	Affected: 0 , < Android: 4.2 (custom) Affected: 0 , < ChromeOS: 4.2 (custom)

Date Public

2026-08-21 09:48

Show details on NVD website

JSON

To clipboard

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CVE-2026-59565 (GCVE-0-2026-59565)

Vulnerability from cvelistv5 – Published: 2026-08-24 13:40 – Updated: 2026-08-24 15:18

Title

Local and kernel denial-of-service

Summary

A remotely exploitable buffer overflow bug can cause a local and kernel denial-of-service attack on affected versions of Zscaler Client Connector on Windows.

Severity

8.8 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-24 15:18 UTC

CWE

CWE-229 - Improper handling of values

Assigner

Zscaler mitre root

References

1 reference

URL	Tags
https://help.zscaler.com/zscaler-client-connector…

Impacted products

1 product

Vendor	Product	Version
Zscaler	Client Connector	Affected: 0 , < Windows: 4.6.0.457, 4.7.0.317, 4.8.0.232, 4.9.0.372 (custom)

Date Public

2026-08-21 09:48

Show details on NVD website

JSON

To clipboard

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CVE-2026-59564 (GCVE-0-2026-59564)

Vulnerability from cvelistv5 – Published: 2026-08-24 13:39 – Updated: 2026-08-25 03:56

Title

Authentication bypass between ZCC and client connector portal

Summary

An authentication bypass issue exists in communications between affected versions of the Zscaler Client Connector and the Zscaler Client Connector Portal.

Severity

9.1 (Critical)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

SSVC

Exploitation: none Automatable: yes Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-24 00:00 UTC

CWE

CWE-304 - Missing critical step in authentication

Assigner

Zscaler mitre root

References

1 reference

URL	Tags
https://help.zscaler.com/zscaler-client-connector…

Impacted products

1 product

Vendor	Product	Version
Zscaler	Client Connector	Affected: 0 , < Windows: 4.6.0.457, 4.7.0.317, 4.8.0.232, 4.9.0.372 (custom) Affected: 0 , < MacOS: 4.5.2.312, 4.7.0.292, 4.8.0.191 (custom) Affected: 0 , < iOS: 4.5.1 (custom) Affected: 0 , < Android: 4.2 (custom) Affected: 0 , < ChromeOS: 4.2 (custom) Affected: 0 , < Linux: 3.7.2.64, 4.2.1.64 (custom)

Date Public

2026-08-21 09:48

Show details on NVD website

JSON

To clipboard

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CVE-2026-22569 (GCVE-0-2026-22569)

Vulnerability from cvelistv5 – Published: 2026-03-31 14:54 – Updated: 2026-03-31 17:24

Title

Incorrect startup configuration in ZCC

Summary

An incorrect startup configuration of affected versions of Zscaler Client Connector on Windows may cause a limited amount of traffic from being inspected under rare circumstances.

Severity

5.4 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-03-31 17:24 UTC

CWE

CWE-1289 - Improper validation of unsafe equivalence in input

Assigner

Zscaler mitre root

References

1 reference

URL	Tags
https://help.zscaler.com/zscaler-client-connector…

Impacted products

1 product

Vendor	Product	Version
Zscaler	Zscaler Client Connector	Affected: 4.7 , < 4.7.0.141 (custom) Affected: 4.8 , < 4.8.0.63 (custom)

Credits

Jordan Eberst, CISA

Show details on NVD website

JSON

To clipboard

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CVE-2026-22567 (GCVE-0-2026-22567)

Vulnerability from cvelistv5 – Published: 2026-02-23 16:13 – Updated: 2026-02-23 18:41

Title

ZIA Admin UI Input Validation Bug

Summary

Improper validation of user-supplied input in the ZIA Admin UI could allow an authenticated administrator to initiate backend functions through specific input fields in limited scenarios.

Severity

7.6 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:L/A:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-02-23 18:41 UTC

CWE

CWE-20 - Improper Input Validation

Assigner

Zscaler mitre root

References

1 reference

URL	Tags
https://help.zscaler.com/zia/release-upgrade-summ…

Impacted products

1 product

Vendor	Product	Version
Zscaler	ZIA Admin UI	Affected: 6.2 , < 6.2r (custom)

Credits

Andrew Allen Hess on behalf of Cyber Defense Team (Deutsche Börse Group)

Show details on NVD website

JSON

To clipboard

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CVE-2026-22568 (GCVE-0-2026-22568)

Vulnerability from cvelistv5 – Published: 2026-02-23 16:12 – Updated: 2026-02-23 18:47

Title

Unauthorized information retrieval in ZIA Admin UI

Summary

Improper neutralization of special elements in user-supplied input within the ZIA Admin UI could allow an authenticated administrator to access or retrieve unauthorized internal information in rare conditions.

Severity

5.5 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-02-23 18:46 UTC

CWE

CWE-20 - Improper Input Validation

Assigner

Zscaler mitre root

References

1 reference

URL	Tags
https://help.zscaler.com/zia/release-upgrade-summ…

Impacted products

1 product

Vendor	Product	Version
Zscaler	ZIA Admin UI	Affected: 6.2 , < 6.2r (custom)

Credits

Andrew Allen Hess on behalf of Cyber Defense Team (Deutsche Börse Group)

Show details on NVD website

JSON

To clipboard

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CVE-2025-54983 (GCVE-0-2025-54983)

Vulnerability from cvelistv5 – Published: 2025-11-12 03:07 – Updated: 2025-11-12 18:18

Title

Health check port on ZCC allows tunnel bypass

Summary

A health check port on Zscaler Client Connector on Windows, versions 4.6 < 4.6.0.216 and 4.7 < 4.7.0.47, which under specific circumstances was not released after use, allowed traffic to potentially bypass ZCC forwarding controls.

Severity

5.2 (Medium)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-11-12 18:18 UTC

CWE

CWE-772 - Missing Release of Resource after Effective Lifetime

Assigner

Zscaler mitre root

References

1 reference

URL	Tags
https://help.zscaler.com/zscaler-client-connector…

Impacted products

1 product

Vendor	Product	Version
Zscaler	Zscaler Client Connector	Affected: 4.6 , < 4.6.0.216 (custom) Affected: 4.7 , < 4.7.0.47 (custom)

Credits

DTCC Team

Show details on NVD website

JSON

To clipboard

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CVE-2025-54982 (GCVE-0-2025-54982)

Vulnerability from cvelistv5 – Published: 2025-08-05 05:36 – Updated: 2026-02-26 17:49

Title

SAML 2.0 Public Key Validation Issue

Summary

An improper verification of cryptographic signature in Zscaler's SAML authentication mechanism on the server-side allowed an authentication abuse.

Severity

9.6 (Critical)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-08-19 03:55 UTC

CWE

CWE-347 - Improper Verification of Cryptographic Signature

Assigner

Zscaler mitre root

References

1 reference

URL	Tags
https://help.zscaler.com/zia/about-identity-providers

Impacted products

1 product

Vendor	Product	Version
Zscaler	Authentication Server	Affected: 0 , < 6.2r (custom)

Credits

Richard Warren, AmberWolf

Show details on NVD website

JSON

To clipboard

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CVE-2024-31127 (GCVE-0-2024-31127)

Vulnerability from cvelistv5 – Published: 2025-06-04 04:45 – Updated: 2025-06-04 13:46

Title

MacOS Zscaler Client Connector Local Privilege Escalation

Summary

An improper verification of a loaded library in Zscaler Client Connector on Mac < 4.2.0.241 may allow a local attacker to elevate their privileges.

Severity

7.3 (High)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-06-04 13:35 UTC

CWE

CWE-346 - Origin Validation Error

Assigner

Zscaler mitre root

References

1 reference

URL	Tags
https://help.zscaler.com/zscaler-client-connector…

Impacted products

1 product

Vendor	Product	Version
Zscaler	Client Connector	Affected: 0 , < 4.2.0.241 (custom)

Credits

Max Keasley

Show details on NVD website

JSON

To clipboard

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CVE-2023-28806 (GCVE-0-2023-28806)

Vulnerability from cvelistv5 – Published: 2024-08-06 15:41 – Updated: 2024-08-06 17:30

Title

Signature validation error in DLL allows disabling anti-tampering protection

Summary

An Improper Validation of signature in Zscaler Client Connector on Windows allows an authenticated user to disable anti-tampering. This issue affects Client Connector on Windows <4.2.0.190.

Severity

5.7 (Medium)


                        
                          CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:N

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-08-06 17:14 UTC

CWE

CWE-347 - Improper Verification of Cryptographic Signature

Assigner

Zscaler mitre root

References

1 reference

URL	Tags
https://help.zscaler.com/client-connector/client-…

Impacted products

2 products

Vendor	Product	Version
Zscaler	Client Connector	Affected: 0 , < 4.2.0.190 (custom)
zscaler	client_connector	Affected: 0 , < 4.2.0.190 (custom) cpe:2.3:a:zscaler:client_connector::::::windows::*

Credits

Equinor Red Team

Show details on NVD website

JSON

To clipboard

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CVE-2024-23483 (GCVE-0-2024-23483)

Vulnerability from cvelistv5 – Published: 2024-08-06 15:30 – Updated: 2024-08-06 18:08

Title

Local Privilege Escalation via lack of input validation

Summary

An Improper Input Validation vulnerability in Zscaler Client Connector on MacOS allows OS Command Injection. This issue affects Zscaler Client Connector on MacOS <4.2.

Severity

7 (High)


                        
                          CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-08-06 17:42 UTC

CWE

CWE-20 - Improper Input Validation

Assigner

Zscaler mitre root

References

1 reference

URL	Tags
https://help.zscaler.com/client-connector/client-…

Impacted products

2 products

Vendor	Product	Version
Zscaler	Client Connector	Affected: 0 , < 4.2 (custom)
zscaler	client_connector	Affected: 0 , < 4.2 (custom) cpe:2.3:a:zscaler:client_connector::::::macos::*

Credits

Singapore GovTech Red Team

Show details on NVD website

JSON

To clipboard

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Find a vulnerability

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108 vulnerabilities by zscaler

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CVE-2025-54982 (GCVE-0-2025-54982)

CVE-2024-31127 (GCVE-0-2024-31127)

CVE-2024-23483 (GCVE-0-2024-23483)

CVE-2024-23464 (GCVE-0-2024-23464)

CVE-2024-23460 (GCVE-0-2024-23460)

CVE-2024-23458 (GCVE-0-2024-23458)

CVE-2024-23456 (GCVE-0-2024-23456)

CVE-2023-28806 (GCVE-0-2023-28806)

CVE-2026-59568 (GCVE-0-2026-59568)

CVE-2026-59567 (GCVE-0-2026-59567)

CVE-2026-59566 (GCVE-0-2026-59566)

CVE-2026-59565 (GCVE-0-2026-59565)

CVE-2026-59564 (GCVE-0-2026-59564)

CVE-2026-22569 (GCVE-0-2026-22569)

CVE-2026-22567 (GCVE-0-2026-22567)

CVE-2026-22568 (GCVE-0-2026-22568)

CVE-2025-54983 (GCVE-0-2025-54983)

CVE-2025-54982 (GCVE-0-2025-54982)

CVE-2024-31127 (GCVE-0-2024-31127)

CVE-2023-28806 (GCVE-0-2023-28806)

CVE-2024-23483 (GCVE-0-2024-23483)

Find a vulnerability

Search criteria ⓘ Use this form to refine search results. Full-text search supports keyword queries with ranking and filtering. You can combine vendor, product, and sources to narrow results. Enable “Apply ordering” to sort by date instead of relevance.

108 vulnerabilities by zscaler

CVE-2026-59568 (GCVE-0-2026-59568)

CVE-2026-59567 (GCVE-0-2026-59567)

CVE-2026-59566 (GCVE-0-2026-59566)

CVE-2026-59565 (GCVE-0-2026-59565)

CVE-2026-59564 (GCVE-0-2026-59564)

CVE-2026-22569 (GCVE-0-2026-22569)

CVE-2026-22568 (GCVE-0-2026-22568)

CVE-2026-22567 (GCVE-0-2026-22567)

CVE-2025-54983 (GCVE-0-2025-54983)

CVE-2025-54982 (GCVE-0-2025-54982)

CVE-2024-31127 (GCVE-0-2024-31127)

CVE-2024-23483 (GCVE-0-2024-23483)

CVE-2024-23464 (GCVE-0-2024-23464)

CVE-2024-23460 (GCVE-0-2024-23460)

CVE-2024-23458 (GCVE-0-2024-23458)

CVE-2024-23456 (GCVE-0-2024-23456)

CVE-2023-28806 (GCVE-0-2023-28806)

CVE-2026-59568 (GCVE-0-2026-59568)

CVE-2026-59567 (GCVE-0-2026-59567)

CVE-2026-59566 (GCVE-0-2026-59566)

CVE-2026-59565 (GCVE-0-2026-59565)

CVE-2026-59564 (GCVE-0-2026-59564)

CVE-2026-22569 (GCVE-0-2026-22569)

CVE-2026-22567 (GCVE-0-2026-22567)

CVE-2026-22568 (GCVE-0-2026-22568)

CVE-2025-54983 (GCVE-0-2025-54983)

CVE-2025-54982 (GCVE-0-2025-54982)

CVE-2024-31127 (GCVE-0-2024-31127)

CVE-2023-28806 (GCVE-0-2023-28806)

CVE-2024-23483 (GCVE-0-2024-23483)

Search criteria ⓘ Use this form to refine search results.
Full-text search supports keyword queries with ranking and filtering.
You can combine vendor, product, and sources to narrow results.
Enable “Apply ordering” to sort by date instead of relevance.