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CVE PROGRAM SOURCE RECORD8.1 High

CVE-2026-25687

ZCC race condition in ZPA tunnel handler

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Status
Published
Published
Updated
Assigning organization
Zscaler

Description

A race condition in the ZPA tunnel handler of affected versions of Zscaler Client Connector (ZCC) allows a heap corruption, resulting in a denial of service (client crash) and potentially arbitrary code execution in the context of the ZCC process.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Zscaler Client Connector

Default version status: unaffected

  • 4.6 to < 4.6.0.486affected
  • 4.7 to < 4.7.0.350affected
  • 4.8 to < 4.8.0.267affected
  • 4.9 to < 4.9.0.412affected

References