CVE-2026-25687

Summary

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 Software

VendorProductVersion RangeStatus
ZscalerClient Connector4.6 < 4.6.0.486affected
ZscalerClient Connector4.7 < 4.7.0.350affected
ZscalerClient Connector4.8 < 4.8.0.267affected
ZscalerClient Connector4.9 < 4.9.0.412affected

Weaknesses

  • CWE-366: CWE-366 Race condition within a thread

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: total

References