CVE-2021-4138

EPSS 0.8%

Vexday Risk Score

3Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS —EPSS 0.8%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

02 May 2022Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

Improved Host header checks to reject requests not sent to a well-known local hostname or IP, or the server-specified hostname.

Affected products

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References