Search/CVE-2026-25687
● CVE — High

CVE-2026-25687

DiscoveredSep 14, 2026UpdatedSep 18, 2026

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.

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CVSS v3.1
8.1 HIGH
EPSS
0.38%
probability of exploitation in 30 days
CISA KEV
Not listed
no confirmed exploitation reported
News coverage
0
sources referencing this CVE
Related IOCs
0
seen in the same coverage
EPSS Trend
Sep 16, 2026 → Sep 25, 2026
▲ 0.15pp
0.23% → 0.38% over 2 tracked changes
CVSS v3.1 Detail
Attack VectorNETWORK
Attack ComplexityHIGH
Privileges RequiredNONE
User InteractionNONE
ScopeUNCHANGED
ConfidentialityHIGH
IntegrityHIGH
AvailabilityHIGH
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Connections
1 relationships
Timeline
disclosure → media coverage
Sep 14, 2026
Disclosure — published as a CVE record. · last revised by NVD Sep 18, 2026