Technical Severity
CRITICAL
CVSS v3.1 Metrics
9.8
/ 10
Minimal Risk
Critical
Vector Specification
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Exploitation Likelihood
EPSS Prediction
94.41
%
Predictive Probability
Percentile Rank
100.0
th
Documented as more likely to be exploited than 100.0% of known CVEs.
Detection Date
Nov 03, 2021
Remediation Due
Nov 17, 2021
CISA Catalog Active
Threat Analysis
Apache HTTP Server contains a path traversal vulnerability that allows an attacker to perform remote code execution if files outside directories configured by Alias-like directives are not under default require all denied or if CGI scripts are enabled. This CVE ID resolves an incomplete patch for CVE-2021-41773.
Remediation Directive
Apply updates per vendor instructions.