CVE-2021-27877
Veritas Backup Exec Agent Improper Authentication Vulnerability
An issue was discovered in Veritas Backup Exec before 21.2. It supports multiple authentication schemes: SHA authentication is one of these. This authentication scheme is no longer used in current versions of the product, but hadn't yet been disabled.
An attacker could remotely exploit this scheme to gain unauthorized access to an Agent and execute privileged commands.
HIGH · CVSS 8.2
⚠ CISA KEV
EPSS 0.45502
Ransomware: known
Act now
- Listed on CISA KEV (known exploited in the wild)
- Linked to known ransomware campaigns
- SSVC exploitation status: active
- EPSS ≥ 0.10 - elevated exploitation probability
- EPSS percentile: top 2% of all CVEs by exploitation likelihood
- Public exploit or PoC is available
- SSVC automatable: yes - attacks can be scripted at scale
- CVSS base score ≥ 7.0
Sigma rules0
YARA rules0