What is CVE-2026-59567?
Multiple vulnerabilities on affected versions of Zscaler Client Connector allow local privilege escalation, giving an unprivileged user the ability to execute arbitrary code in a privileged context.
The record classifies CVE-2026-59567 under weakness class CWE-280. Its CVSS v3 base vector states that the flaw requires local access to the host, needs low-privilege credentials, needs no user interaction, and has high impact on confidentiality, integrity, availability. 1 affected-product entry is recorded, across 1 vendor, listed below. The identifier was first published 64 days ago.
Severity and exploitation probability
- CVSS v3.1 base score
- 8.8 — HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H - EPSS (FIRST)
- 0.1% probability of exploitation in the next 30 days, higher than 3.6% of all scored CVEs
- CISA KEV
- Not listed in the CISA Known Exploited Vulnerabilities catalog
- Threadlinqs priority
- 4.5/10 — a Threadlinqs composite of the CVSS base score, the EPSS percentile and public exploit availability
- Published
- 2026-08-24, last modified 2026-08-25
Is CVE-2026-59567 being exploited?
It currently carries a trending score of 24 in the Threadlinqs vulnerability feed.
Affected products and versions
- Zscaler: Client Connector
How to fix CVE-2026-59567
No vendor patch reference has been recorded for CVE-2026-59567 in the tracked sources. Follow the references below for a fix, and treat the products listed above as exposed until the vendor states otherwise.
Threat activity tracking CVE-2026-59567
1 tracked threat in the Threadlinqs corpus references CVE-2026-59567, either in the campaign’s CVE list or as an indicator on the campaign record.
- Multiple Zscaler Client Connector Flaws Enable Remote Code Execution (CVE-2026-59568) — CRITICAL · 2026-08-25
Sources
Enriched from CVE.org, FIRST EPSS. Last verified by Threadlinqs on .