AUGUST 4, 2026
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Case File

CVE-2021-21877

CRITICAL · CVSS 9.1 EPSS 2.69%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2021-12-22 · Last synced 2026-08-04

CyberRota Analysis

This is a critical severity vulnerability with a CVSS score of 9.1. See the original NVD description below for full technical details.

CVE
CVE-2021-21877
Severity
CRITICAL
CVSS
9.1
EPSS
2.69%

Original NVD Description

Specially-crafted HTTP requests can lead to arbitrary command execution in “GET” requests. An attacker can make authenticated HTTP requests to trigger this vulnerability.

Related CVEs

Other vulnerabilities affecting the same vendor(s)

CVE-2025-70082 CRITICAL CVE-2025-67041 CRITICAL CVE-2025-67039 CRITICAL CVE-2025-67038 CRITICAL CVE-2025-67037 HIGH CVE-2025-67036 HIGH