Home / Vulnerabilities / CVE-2021-4034
HIGH SEVERITY
CVE-2021-4034 Red Hat · Polkit

Red Hat Polkit Out-of-Bounds Read and Write Vulnerability

Technical Severity

CVSS v3.1 Metrics

HIGH
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

87.12 %
Predictive Probability
Percentile Rank
99.4 th

Documented as more likely to be exploited than 99.4% of known CVEs.

Detection Date

Jun 27, 2022

Remediation Due

Jul 18, 2022

CISA Catalog Active

Threat Analysis

The Red Hat polkit pkexec utility contains an out-of-bounds read and write vulnerability that allows for privilege escalation with administrative rights.

Remediation Directive

Apply updates per vendor instructions.

External Intelligence