CVE-2021-4034Used in ransomware
Red Hat Polkit
Red Hat Polkit Out-of-Bounds Read and Write Vulnerability
What it is
The Red Hat polkit pkexec utility contains an out-of-bounds read and write vulnerability that allows for privilege escalation with administrative rights.
What to do
Apply updates per vendor instructions.
Vendor notices and references
Description and required action as published by CISA. Full record at NVD.
Other Red Hat entries on the list
- Automatic Bug Reporting Tool Red Hat Automatic Bug Reporting Tool Privilege Escalation Vulnerability CVE-2015-5287 · Aug 26, 2026
- Libuser Red Hat Libuser Race Condition Vulnerability CVE-2015-3246 · Aug 26, 2026
- JBoss RichFaces Framework Red Hat JBoss RichFaces Framework Expression Language Injection Vulnerability CVE-2018-14667 · Sep 28, 2023
- Polkit Red Hat Polkit Incorrect Authorization Vulnerability CVE-2021-3560 · May 12, 2023
- JBoss Red Hat JBoss Information Disclosure Vulnerability CVE-2010-1428 · May 25, 2022
- JBoss Red Hat JBoss Authentication Bypass Vulnerability CVE-2010-0738 · May 25, 2022