CVE-2020-11536

moderate-risk

Published 2020-04-15

An issue was discovered in ONLYOFFICE Document Server 5.5.0. An attacker can craft a malicious .docx file, and exploit the unzip function to rewrite a binary and remotely execute code on a victim's server.

Do I need to act?

0.55% chance of exploitation

EPSS score — low exploit probability

Not on CISA KEV list

No confirmed active exploitation reported to CISA

Patch status unknown

Check vendor advisories for fix availability and mitigation guidance

CVSS 9.8/10 Critical

NETWORK / LOW complexity

Affected Products (1)

Document Server

Affected Vendors

Onlyoffice

References (4)

Third Party Advisory https://gist.github.com/andrewaeva/beb92d3d2f1c5672dbda5050e323f6a0

Release Notes https://github.com/ONLYOFFICE/DocumentServer/blob/master/CHANGELOG.md#551

Third Party Advisory https://gist.github.com/andrewaeva/beb92d3d2f1c5672dbda5050e323f6a0

Release Notes https://github.com/ONLYOFFICE/DocumentServer/blob/master/CHANGELOG.md#551

/ 100

moderate-risk

Severity 32/34 · Critical

Exploitability 2/34 · Minimal

Exposure 5/34 · Minimal