AUGUST 5, 2026
Live Feed
Back to database
Case File

CVE-2021-20791

CRITICAL · CVSS 9.3 EPSS 0.84%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2021-09-17 · Last synced 2026-08-04

CyberRota Analysis

This is a critical severity vulnerability with a CVSS score of 9.3. It affects Exchange.

CVE
CVE-2021-20791
Severity
CRITICAL
CVSS
9.3
EPSS
0.84%
Exchange

Original NVD Description

Improper access control vulnerability in RevoWorks Browser 2.1.230 and earlier allows an attacker to bypass access restriction and to exchange unauthorized files between the local environment and the isolated environment or settings of the web browser via unspecified vectors.

Related CVEs

Other vulnerabilities affecting the same vendor(s)