CVE-2021-1789

criticalknown exploitedcovered by 1 sourcefirst seen 2022-05-04

Actively exploited. CVE-2021-1789 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2022-05-04) — exploitation has been observed in the wild, and US federal agencies are required to remediate it under BOD 22-01. Treat patching as urgent.

A type confusion issue affecting multiple Apple products allows processing of maliciously crafted web content, leading to arbitrary code execution.

CSIRTS triage

vendor: Apple Remote code execution

What: A type confusion issue allows processing of maliciously crafted web content, leading to arbitrary code execution.
Who is affected: Users of affected Apple products.
Urgency: Urgent remediation is necessary as the vulnerability is actively exploited and classified as critical.
Action: Update all affected Apple products to the latest version.

AI-assisted analysis generated from the source advisory — verify against the original.

⚡ Watch CVE-2021-1789

Get an email if CVE-2021-1789 is added to CISA KEV, gains public exploit code, or a new advisory cites it — max one per day, one-click unsubscribe.

Exploitation outlook

Exploitation confirmedAlready exploited in the wild (CISA KEV) — the prediction phase is over. Patch now. Riskier than 96% of all EPSS-scored CVEs.

Advisory coverage (1)

criticalexploitedCVE-2021-1789: Apple Multiple Products Type Confusion Vulnerabilitycisa-kev · 2022-05-04

External references

NVD record for CVE-2021-1789

CVE.org record

CISA KEV catalog

Embed the live status

— this badge updates automatically when the KEV or exploit status changes. How to embed it →

[![CVE-2021-1789 status](https://www.csirts.com/badge/CVE-2021-1789)](https://www.csirts.com/cve/CVE-2021-1789)