CVE-2023-28798

An out-of-bounds write to heap in the pacparser library on Zscaler Client Connector on Mac may lead to arbitrary code execution.

CVSS v3 6.5 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.2 / Impact : 3.7

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact LOW

Scope CHANGED

References

Link	Resource
https://help.zscaler.com/client-connector/client-connector-app-release-summary-2022?applicable_category=macOS&applicable_version=3.7&deployment_date=2022-08-19&id=1414851	Release Notes Vendor Advisory
https://help.zscaler.com/client-connector/client-connector-app-release-summary-2022?applicable_category=macOS&applicable_version=3.7&deployment_date=2022-08-19&id=1414851	Release Notes Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:zscaler:client_connector:*:*:*:*:*:macos:*:*

History

No history.

Information

Published : 2024-05-02 13:23

Updated : 2026-02-20 21:23

NVD link : CVE-2023-28798

Mitre link : CVE-2023-28798

CVE.ORG link : CVE-2023-28798

JSON object : View

Products Affected

zscaler

client_connector

CWE

CWE-122

Heap-based Buffer Overflow

CWE-787

Out-of-bounds Write

{"id": "CVE-2023-28798", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "cve@zscaler.com", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 6.5, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:L", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "LOW", "privilegesRequired": "NONE", "confidentialityImpact": "LOW"}, "impactScore": 3.7, "exploitabilityScore": 2.2}, {"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 9.8, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 3.9}]}, "published": "2024-05-02T13:23:05.807", "references": [{"url": "https://help.zscaler.com/client-connector/client-connector-app-release-summary-2022?applicable_category=macOS&applicable_version=3.7&deployment_date=2022-08-19&id=1414851", "tags": ["Release Notes", "Vendor Advisory"], "source": "cve@zscaler.com"}, {"url": "https://help.zscaler.com/client-connector/client-connector-app-release-summary-2022?applicable_category=macOS&applicable_version=3.7&deployment_date=2022-08-19&id=1414851", "tags": ["Release Notes", "Vendor Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "cve@zscaler.com", "description": [{"lang": "en", "value": "CWE-122"}]}, {"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-787"}]}], "descriptions": [{"lang": "en", "value": "An out-of-bounds write to heap in the pacparser library on Zscaler Client Connector on Mac may lead to arbitrary code execution."}, {"lang": "es", "value": "Una escritura fuera de los l\u00edmites en el mont\u00f3n en la librer\u00eda pacparser en Zscaler Client Connector en Mac puede provocar la ejecuci\u00f3n de c\u00f3digo arbitrario."}], "lastModified": "2026-02-20T21:23:10.113", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:zscaler:client_connector:*:*:*:*:*:macos:*:*", "vulnerable": true, "matchCriteriaId": "42F3A99E-0E82-49F1-88D5-9397220A0A1A", "versionEndExcluding": "3.7"}], "operator": "OR"}]}], "sourceIdentifier": "cve@zscaler.com"}