Veritas Backup Exec Agent File Access Vulnerability

Critical Threat Advisory: This vulnerability is documented in active Ransomware campaigns. Immediate remediation required.

Technical Severity

CVSS v3.1 Metrics

HIGH

8.1 / 10

Minimal Risk Critical

Vector Specification

CVSS:3.1/AC:L/AV:N/A:N/C:H/I:H/PR:L/S:U/UI:N

Exploitation Likelihood

EPSS Prediction

0.99 %

Predictive Probability

Percentile Rank

76.8 th

Documented as more likely to be exploited than 76.8% of known CVEs.

Detection Date

Apr 07, 2023

Remediation Due

Apr 28, 2023

CISA Catalog Active

Threat Analysis

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.

Remediation Directive

Apply updates per vendor instructions.

External Intelligence

https://www.veritas.com/support/en_US/security/VTS21-001

NVD

National Vulnerability Database

https://nvd.nist.gov/vuln/detail/CVE-2021-27876