CVE-2026-116596 Details
Description
Pyrus Sync for Windows contains a local privilege escalation vulnerability caused by missing authorization controls in its PyrusSyncService Windows service, which allow an attacker with unprivileged access to create files using the ISyncService contract.
A local privilege escalation vulnerability has been identified in Pyrus Sync for Windows, specifically in version 1.8.694.0. The issue arises from inadequate authorization controls in the PyrusSyncService Windows service, which operates with LocalSystem privileges. This vulnerability allows an attacker with unprivileged access to exploit the ISyncService contract and create files in locations that are otherwise restricted.
Users can update to Pyrus Sync version 1.8.745.0, which appears to address this vulnerability by removing the problematic 'ZipFolder' operation and replacing it with 'ZipLogFolder', although the latter does not fully replicate the original functionality.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Oct 26, 2026References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://medium.com/@alisaifeldin/cve-2026-116596-local-privilege-escalation-in-pyrus-sync-for-windows-0fe2417dc8cf | [email protected] | ExploitTechnical Analysis |
| https://pyrus.com/en/pyrus-sync | [email protected] | ProductVendor |
Weakness Enumeration
No weakness enumeration is available for this CVE.
Affected Products
| Product | Versions |
|---|---|
| Pyrus Sync | 1.8.694.0 |
CPE
Remediation
| |
Change History
1 change record found show changes
| Date | Action | Recorded By |
|---|---|---|
| Oct 26, 2026 | New CVE Received | [email protected] |