CVE-2026-59567
Local privilege escalation in Zscaler Client Connector enabling privileged arbitrary code execution.
Is CVE-2026-59567 being exploited?
Not confirmed. CVE-2026-59567 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.10% probability of exploitation in the next 30 days.
How severe is CVE-2026-59567?
CVE-2026-59567 is rated High with a CVSS score of 8.8. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-59567?
Not known from our data. No patch reference has been recorded for CVE-2026-59567, which is not the same as no patch existing — a fix may have shipped without a tagged reference, or after this record was written. The vendor advisory is the only authority on whether a fix exists, and mitigations may be available regardless.
What does CVE-2026-59567 affect?
CVE-2026-59567 affects Zscaler Client Connector (endpoint agent). Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-59567?
Apply vendor patch when released; remove unnecessary local privileges; monitor endpoints.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Unprivileged local user can escalate to admin/root and run arbitrary code, fully compromising endpoint security.
Immediate action required
- affected< Windows: 4.6.0.457, 4.7.0.317, 4.8.0.232, 4.9.0372
- affected< MacOS: 4.5.2.312, 4.7.0.292, 4.8.0.191
- affected< Linux: 3.7.2.64, 4.2.1.64
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.