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CVE-2021-1789: Apple Multiple Products Type Confusion Vulnerability

criticalknown exploitedCVE-2021-1789
Actively exploited. At least one CVE in this advisory is listed in the CISA Known Exploited Vulnerabilities catalog — exploitation has been observed in the wild. Treat remediation 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: AppleRemote 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.

Details

Source
CISA Known Exploited Vulnerabilities (US · database · site)
Severity
critical
Published
2022-05-04
Exploitation
Observed in the wild (CISA KEV)

Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2021-1789

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2021-1789coverage & exploitation statusNVD · CVE.org

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