Cyber Resilience

CVE-2021-4097

MediumPublic PoC

Published: 12 December 2021

Published
12 December 2021
Modified
21 November 2024
KEV Added
—
Patch
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CVSS Score v3.1 5.4 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
EPSS Score 0.0024 47.5th percentile
Risk Priority 11 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2021-4097 is a medium-severity CRLF Injection (CWE-93) vulnerability in Phpservermonitor Php Server Monitor. Its CVSS base score is 5.4 (Medium).

Operationally, ranked at the 47.5th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

EU & UK References

Vulnerability details

phpservermon is vulnerable to Improper Neutralization of CRLF Sequences

CWE(s)
CWE-93

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

phpservermonitor
php server monitor
≤ 3.6.0

Mitigating Controls

No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.

References