CVE-2021-25832
CVSS v3
9.8
CRITICAL
EPSS Score
12.6 %
exploit probability, as of 2026-10-05
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
A heap buffer overflow vulnerability inside of BMP image processing was found at [core] module of ONLYOFFICE DocumentServer v4.0.0-9-v6.0.0. Using this vulnerability, an attacker is able to gain remote code executions on DocumentServer.
Technical details
- Published
- 2021-03-01
Frequently asked questions
What is CVE-2021-25832?
A heap buffer overflow vulnerability inside of BMP image processing was found at [core] module of ONLYOFFICE DocumentServer v4.0.0-9-v6.0.0. Using this vulnerability, an attacker is able to gain remote code executions on DocumentServer.
Is CVE-2021-25832 actively exploited?
Active exploitation of CVE-2021-25832 has not been confirmed. Its EPSS score was 12.6% on 2026-10-05, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2021-25832?
CVE-2021-25832 has a CVSS v3 base score of 9.8 (CRITICAL severity).
Is CVE-2021-25832 affecting your environment?
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