CVE-2021-25832

Name of the Vulnerable Software and Affected Versions ONLYOFFICE DocumentServer versions 4.0.0 through 6.0.0

Description A heap buffer overflow vulnerability was found in the BMP image processing of the [core] module. This issue allows an attacker to gain remote code execution on the DocumentServer.

Recommendations For versions 4.0.0 through 6.0.0, update to a version that fixes the heap buffer overflow vulnerability in the BMP image processing module. As a temporary workaround, consider disabling the BMP image processing functionality in the [core] module until a patch is available.