CVE-2021-1789
CISA KEVPublished May 4, 2022 · Updated April 3, 2026
high
Official Description+
A type confusion issue affecting multiple Apple products allows processing of maliciously crafted web content, leading to arbitrary code execution.
Affected Products
| Vendor | Product |
|---|---|
| Apple | Multiple Products |
Patch Status
Patch by 2022-05-25
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-2021-1789.