Technical Severity
HIGH
CVSS v3.1 Metrics
7.8
/ 10
Minimal Risk
Critical
Vector Specification
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Exploitation Likelihood
EPSS Prediction
89.45
%
Predictive Probability
Percentile Rank
99.5
th
Documented as more likely to be exploited than 99.5% of known CVEs.
Detection Date
Nov 03, 2021
Remediation Due
May 03, 2022
CISA Catalog Active
Threat Analysis
Apache HTTP Server, with MPM event, worker or prefork, code executing in less-privileged child processes or threads (including scripts executed by an in-process scripting interpreter) could execute code with the privileges of the parent process (usually root) by manipulating the scoreboard.
Remediation Directive
Apply updates per vendor instructions.