CVE-2021-27876VulnerabilityPublished 04/07/2023Updated 10/24/2026
CVE-2021-27876: Veritas Backup Exec Agent File Access Vulnerability
Affects Veritas Backup Exec AgentSource CISA KEV
Severity
HighNo CVSS score published yet
- Exploitation
Actively exploited – in CISA KEV since 04/07/2023
- KEV deadline
- 04/28/2023
- Ransomware
- Used in ransomware campaigns
- EPSS
- 13.5% chance of exploitation in 30 days – higher than 96% of CVEs
What to do
CISA required action
Apply updates per vendor instructions.
Description
Veritas Backup Exec (BE) Agent contains a file access vulnerability that could allow an attacker to specially craft input parameters on a data management protocol command to access files on the BE Agent machine.