AUGUST 4, 2026
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Case File

CVE-2021-25832

CRITICAL · CVSS 9.8 EPSS 12.59% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2021-03-01 · Last synced 2026-08-04

CyberRota Analysis

This is a critical severity vulnerability with a CVSS score of 9.8. It affects Office. Public exploit code or proof-of-concept references have been detected in its references. Its EPSS score suggests a 12.6% probability of exploitation in the next 30 days. It may be remotely exploitable.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Detected Signals
remote code execution code execution

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2021-25832
Severity
CRITICAL
CVSS
9.8
EPSS
12.59%
Office

Original NVD 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.

Related CVEs

Other vulnerabilities affecting the same vendor(s)