AUGUST 4, 2026
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Case File

CVE-2021-47667

CRITICAL · CVSS 10 EPSS 32.88%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2025-04-05 · Last synced 2026-08-04

CyberRota Analysis

This is a critical severity vulnerability with a CVSS score of 10.0. Its EPSS score suggests a 32.9% probability of exploitation in the next 30 days. It may be remotely exploitable.

CVE
CVE-2021-47667
Severity
CRITICAL
CVSS
10
EPSS
32.88%

Original NVD Description

An OS command injection vulnerability in lib/NSSDropoff.php in ZendTo 5.24-3 through 6.x before 6.10-7 allows unauthenticated remote attackers to execute arbitrary commands via shell metacharacters in the tmp_name parameter when dropping off a file via a POST /dropoff request.