ACTIVELY EXPLOITED

CVE-2021-27878: Veritas Backup Exec Agent Command Execution Vulnerability

Facts
VendorVeritas
ProductBackup Exec Agent
Actively exploitedYes
Added to CISA KEV7 Apr 2023
CISA federal deadline28 Apr 2023
Ransomware useKnown
Weakness (CWE)CWE-287

Required action (CISA's text)

Apply updates per vendor instructions.

Description (NVD)

Veritas Backup Exec (BE) Agent contains a command execution vulnerability that could allow an attacker to use a data management protocol command to execute a command on the BE Agent machine.

SOURCES

Other Veritas flaws

Data from NVD, CISA KEV, FIRST EPSS and vendor advisories. Updated 10 Nov 2026.