CVE-2026-41030 Privilege escalation in ONLYOFFICE DesktopEditors
Attackers can perform file operations with SYSTEM privileges via the update service in ONLYOFFICE DesktopEditors, leading to privilege escalation.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-41030?
CVE-2026-41030 is a medium-severity vulnerability in Ascensio ONLYOFFICE DesktopEditors, published on 16 Apr 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
In ONLYOFFICE DesktopEditors before 9.3.0, the update service allows attackers to perform actions on files with SYSTEM privileges.
Weakness: CWE-669
Which versions are affected by CVE-2026-41030?
How do I fix CVE-2026-41030?
No fix has been published for CVE-2026-41030 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-41030 being exploited?
There is no known exploitation of CVE-2026-41030 in the wild and no public exploit code.
Sources
Also known as GHSA-q42f-8h4q-g7mm.