CVSS v3
9.8
CRITICAL
EPSS Score
36.1%
exploit probability
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Imperva Web Application Firewall (WAF) before 2021-12-23 allows remote unauthenticated attackers to use "Content-Encoding: gzip" to evade WAF security controls and send malicious HTTP POST requests to web servers behind the WAF.
Imperva Web Application Firewall (WAF) before 2021-12-23 allows remote unauthenticated attackers to use "Content-Encoding: gzip" to evade WAF security controls and send malicious HTTP POST requests to web servers behind the WAF.
Active exploitation of CVE-2021-45468 has not been confirmed. The EPSS score is 36.1%, indicating the estimated probability of exploitation in the next 30 days.
CVE-2021-45468 has a CVSS v3 base score of 9.8 (CRITICAL severity).
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Ranked by exploit probability (EPSS).