Hazard

Is CVE-2021-27876 being exploited?

Ransomware crews are using this

CISA has linked this vulnerability to known ransomware campaigns. Treat any exposed instance as an active incident, not a patching ticket.

Veritas Backup Exec Agent File Access Vulnerability

Veritas · Backup Exec Agent

CVSS 8.1 EPSS 13% no public exploit indexed ransomware Fix deadline passed 28 April 2023

What it is

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.

Why we say that

  • Linked by CISA to known ransomware campaigns
  • CISA's federal remediation deadline (2023-04-28) has passed
  • Listed in the CISA Known Exploited Vulnerabilities catalogue

Every line above comes from a named public source. Where the evidence is thin, we say so rather than inventing confidence — see methodology.

What to do

Apply updates per vendor instructions.

What it costs when this goes wrong

This is where UK enforcement meets the vulnerability record. This vulnerability is used in ransomware campaigns; here is what ransomware has cost UK organisations at the regulator.

All UK cases caused by ransomware →