Vulnerability in Ascensio Onlyoffice Desktopeditors

CVE-2026-41030

In ONLYOFFICE DesktopEditors before 9.3.0, the update service allows attackers to perform actions on files with SYSTEM privileges.

Published · last modified .

CVSS v3 metric

CVSS v3 base score 6.2 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.002 (4.2th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 4th percentile — 4.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2026-41030: held from 0.002 to 0.002.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: -0.000

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-41030?
CVE-2026-41030 is a medium-severity vulnerability in Ascensio Onlyoffice Desktopeditors, classified under Incorrect Resource Transfer Between Spheres. CVSS score: 6.2/10. Published 2026-04-16.
How severe is CVE-2026-41030?
Medium severity. CVSS v3 base score is 6.2 out of 10.