An issue was discovered in Veritas Backup Exec before 21.2. The communication between a client and an Agent requires successful authentication, which is typically completed over a secure TLS communication. However, due to a vulnerability in the SHA Authentication scheme, an attacker is able to gain unauthorized access and complete the authentication process. Subsequently, the client can execute data management protocol commands on the authenticated connection. The attacker could use one of these commands to execute an arbitrary command on the system using system privileges.
                
            Metrics
Affected Vendors & Products
References
        History
                    Wed, 22 Oct 2025 00:15:00 +0000
| Type | Values Removed | Values Added | 
|---|---|---|
| References |  | 
Tue, 21 Oct 2025 20:30:00 +0000
| Type | Values Removed | Values Added | 
|---|---|---|
| References |  | 
Tue, 21 Oct 2025 19:30:00 +0000
| Type | Values Removed | Values Added | 
|---|---|---|
| Weaknesses | CWE-287 | NVD-CWE-noinfo | 
| References |  | 
Tue, 04 Feb 2025 19:15:00 +0000
| Type | Values Removed | Values Added | 
|---|---|---|
| Metrics | kev 
 
 | 
 MITRE
                        MITRE
                    Status: PUBLISHED
Assigner: mitre
Published: 2021-03-01T21:49:24.000Z
Updated: 2025-10-21T23:25:53.483Z
Reserved: 2021-03-01T00:00:00.000Z
Link: CVE-2021-27878
 Vulnrichment
                        Vulnrichment
                    Updated: 2024-08-03T21:33:16.375Z
 NVD
                        NVD
                    Status : Modified
Published: 2021-03-01T22:15:14.537
Modified: 2025-10-22T00:17:30.257
Link: CVE-2021-27878
 Redhat
                        Redhat
                    No data.