CVE-2021-30953

moderate-risk
Published 2021-08-24

An out-of-bounds read was addressed with improved bounds checking. This issue is fixed in tvOS 15.2, macOS Monterey 12.1, Safari 15.2, iOS 15.2 and iPadOS 15.2, watchOS 8.3. Processing maliciously crafted web content may lead to arbitrary code execution.

Do I need to act?

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0.48% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
8
CVSS 8.8/10 High
NETWORK / LOW complexity

Affected Vendors

48
/ 100
moderate-risk
Severity 30/34 · Critical
Exploitability 2/34 · Minimal
Exposure 16/34 · Moderate