Home › Exploited CVEs › CVE-2021-27876
CVE-2021-27876: Veritas Backup Exec Agent File Access Vulnerability
Veritas Backup Exec Agent · in CISA KEV since 2023-04-07
2023-04-07added to KEV
2023-04-28federal remediation due date
13.52%EPSS exploit probability (30 days) 96.3th percentile
8.1 HIGHCVSS 3.1
Knownknown ransomware use
767days from NVD publication to KEV
What it is
Veritas Backup Exec (BE) Agent contains a file access vulnerability that could allow an attacker to specially craft input parameters on a data management protocol command to access files on the BE Agent machine.
Required action (CISA)
Apply updates per vendor instructions.
| CWE | CWE-287 |
|---|---|
| CVSS vector | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N |
| NVD published | 2021-03-01 (Analyzed) |
Original records: NVD · CISA KEV · JSON: /api/cve/CVE-2021-27876.json · all KEV CVEs
Kevscope: daily CISA KEV + EPSS datasetThe whole KEV catalog joined with daily EPSS and CVSS scores as CSV/Parquet, refreshed daily. Free to download.
Get the full file: Exploited Vulnerabilities Brief – September 2026 ($29): this month's KEV additions ranked by EPSS, ransomware use and due date, ready to hand to a patch team. Checkout by Polar.
Get the full file: Exploited Vulnerabilities Brief – September 2026 ($29): this month's KEV additions ranked by EPSS, ransomware use and due date, ready to hand to a patch team. Checkout by Polar.