Technical Severity
HIGH
CVSS v3.1 Metrics
7.8
/ 10
Minimal Risk
Critical
Vector Specification
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Exploitation Likelihood
EPSS Prediction
92.96
%
Predictive Probability
Percentile Rank
99.8
th
Documented as more likely to be exploited than 99.8% of known CVEs.
Detection Date
Aug 25, 2022
Remediation Due
Sep 15, 2022
CISA Catalog Active
Threat Analysis
PEAR Archive_Tar allows an unserialization attack because phar: is blocked but PHAR: is not blocked. PEAR stands for PHP Extension and Application Repository and it is an open-source framework and distribution system for reusable PHP components with known usage in third-party products such as Drupal Core and Red Hat Linux.
Remediation Directive
Apply updates per vendor instructions.