Critical severity9.1NVD Advisory· Published Dec 22, 2021· Updated Jun 17, 2026

CVE-2021-21877

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Patches

Vulnerability mechanics

References

talosintelligence.com/vulnerability_reports/TALOS-2021-1315nvdExploitThird Party Advisory

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cvss	0.591
epss	0.002
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000