VULNERABILITY INTELLIGENCE
CVE-2021-27877
CVSS score8.2 HIGH
EPSS probability64.91%
CISA KEVKnown exploited vulnerability
Published2021-03-01
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N
Known Exploited Vulnerability
Veritas Backup Exec Agent Improper Authentication Vulnerability
Vendor / product: Veritas / Backup Exec Agent
Description
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.
Primary references
- cve@mitre.org — Exploit, Third Party Advisory, VDB Entry
- cve@mitre.org — Vendor Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Exploit, Third Party Advisory, VDB Entry
- af854a3a-2127-422b-91ae-364da2661108 — Vendor Advisory
- 134c704f-9b21-4f2e-91b3-4a467353bcc0 — US Government Resource