CVE-2021-4034
CISA KEVPublished June 27, 2022 · Updated April 3, 2026
high
Official Description+
The Red Hat polkit pkexec utility contains an out-of-bounds read and write vulnerability that allows for privilege escalation with administrative rights.
Affected Products
| Vendor | Product |
|---|---|
| Red Hat | Polkit |
Patch Status
Patch by 2022-07-18
Recommended Actions
- Check if your systems use any of the affected products listed above.
- Apply vendor patches immediately if available.
- This vulnerability is in CISA's Known Exploited Vulnerabilities catalog — prioritize remediation.
- Monitor vendor advisories for updates and additional mitigations.
- Review logs for indicators of compromise related to CVE-2021-4034.