CVE-2023-28798: medium-severity vulnerability in Zscaler Client Connector
Out-of-bounds write to heap in pacparser
Published · Updated
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13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 6.5epss 0.4%
An out-of-bounds write to heap in the pacparser library on Zscaler Client Connector on Mac may lead to arbitrary code execution.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:L
Affected products
Zscaler · Client ConnectorRelated CVEs — Zscaler Client Connector
In the same product, most dangerous first.
CVE-2024-23483HIGHLocal Privilege Escalation via lack of input validationEPSS 0.7%CVE-2026-59568CRITICALRemote Code ExecutionEPSS 0.7%CVE-2023-28800HIGHOutput encoding missing in redrurl parameterEPSS 0.5%CVE-2026-59564CRITICALAuthentication bypass between ZCC and client connector portalEPSS 0.5%CVE-2026-59565HIGHLocal and kernel denial-of-serviceEPSS 0.5%CVE-2024-23459HIGHMultiple Arbitrary Creates/Overwrites by link followingEPSS 0.5%