CVE-2021-27876
Expert Analysis
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CVSS Score
V3.1EPSS Score
v2025.03.14There is a 0.6% chance that this vulnerability will be exploited in the wild within the next 30 days.
Attack Vector Metrics
Impact Metrics
Description
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. By using crafted input parameters in one of these commands, an attacker can access an arbitrary file on the system using System privileges.
Available Exploits
Related News
Known Exploited Vulnerability
This vulnerability is actively being exploited in the wild
Remediation Status
Due Date
Added to KEV
Required Action
Apply updates per vendor instructions.
Affected Product
Ransomware Risk
EU Vulnerability Database
Monitored by ENISA for EU cybersecurity
ENISA Analysis
Malicious code in bioql (PyPI)
Affected Products (ENISA)
ENISA Scoring
CVSS Score (3.1)
EPSS Score
ENISA References
Data provided by ENISA EU Vulnerability Database. Last updated: October 3, 2025
GitHub Security Advisories
Community-driven vulnerability intelligence from GitHub
Advisory Details
CVSS Scoring
CVSS Score
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
References
Advisory provided by GitHub Security Advisory Database. Published: May 24, 2022, Modified: September 27, 2022
Social Media Intelligence
Real-time discussions and threat intelligence from social platforms
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