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CRITICAL

CVE-2021-21876

CVSS v3

9.1

CRITICAL

EPSS Score

2.8 %

exploit probability

CISA KEV

No

known exploited

Exploitation

SSVC status

Description

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

Technical details

Published
2021-12-22

Frequently asked questions

What is CVE-2021-21876?

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

Is CVE-2021-21876 actively exploited?

Active exploitation of CVE-2021-21876 has not been confirmed. The EPSS score is 2.8%, indicating the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2021-21876?

CVE-2021-21876 has a CVSS v3 base score of 9.1 (CRITICAL severity).

Is CVE-2021-21876 affecting your environment?

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