CVE-2021-27877 - CVE House
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Status published High CVE-2021-27877

An issue was discovered in Veritas Backup Exec before 21.2....

Vulnerability 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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

References

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Affected Vendor

Affected Software

backup exec
Vulnerable Versions:
0

Timeline

Official Publish: March 1st, 2021
Last Modified: October 21st, 2025
Added to House: July 21st, 2026

CVSS Vectors

V3: CVSS:3.1/AC:L/AV:N/A:N/C:H/I:L/PR:N/S:U/UI:N

Weaknesses (CWE)

No CWE data available

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.