CVE-2026-116596

high

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.

References

https://pyrus.com/en/pyrus-sync

https://medium.com/@alisaifeldin/cve-2026-116596-local-privilege-escalation-in-pyrus-sync-for-windows-0fe2417dc8cf

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-109978

Details

Source: Mitre, NVD

Published: 2026-10-26

Updated: 2026-10-26

Risk Information

CVSS v2

Base Score: 4.6

Vector: CVSS2#AV:L/AC:L/Au:N/C:P/I:P/A:P

Severity: Medium

CVSS v3

Base Score: 7.8

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Severity: High

EPSS

EPSS: 0.00131