AUGUST 4, 2026
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Case File

CVE-2021-4463

UNKNOWN · CVSS N/A EPSS 1.47% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2025-11-12 · Last synced 2026-08-04

CyberRota Analysis

This vulnerability has an unknown severity rating. Public exploit code or proof-of-concept references have been detected in its references.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2021-4463
Severity
UNKNOWN
CVSS
N/A
EPSS
1.47%

Original NVD Description

Longjing Technology BEMS API versions up to and including 1.21 contains an unauthenticated arbitrary file download vulnerability in the 'downloads' endpoint. The 'fileName' parameter is not properly sanitized, allowing attackers to craft traversal sequences and access sensitive files outside the intended directory.