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CVE Record

CVE-2021-30884: The issue was resolved with additional restrictions on CSS compositing.

The issue was resolved with additional restrictions on CSS compositing. This issue is fixed in tvOS 15, watchOS 8, iOS 15 and iPadOS 15. Visiting a maliciously crafted website may reveal a user's browsing history.

UnknownCVSS not scoredNot KEV-listedUpdated
Glexia's TakeAutomated analysis

Security readout for executives and security teams

CVE-2021-30884 is a privacy issue where a malicious website could reveal a user's browsing history on affected Apple platforms. Apple says it was fixed by adding restrictions to CSS compositing in iOS 15, iPadOS 15, tvOS 15, and watchOS 8. Exposure is most likely on Apple devices running releases before iOS 15, iPadOS 15, tvOS 15, or watchOS 8. The source bundle does not identify exact vulnerable version ranges or confirm exposure beyond the listed Apple products. Treat this as a moderate privacy-risk remediation item. It is web-triggered and affects user browsing-history confidentiality, but the provided sources do not show active exploitation or system compromise. Mitigation focus: Upgrade iPhone and iPad devices to iOS 15 or iPadOS 15 or later.; Upgrade Apple TV devices to tvOS 15 or later.; Upgrade Apple Watch devices to watchOS 8 or later..

Prepared

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

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CVE-2021-30884 mapping review

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors
0Timeline events
0ADP providers
5Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
AppleiOS and iPadOSunspecifiedListed
AppletvOSunspecifiedListed
ApplewatchOSunspecifiedListed
Weakness

CWE details

No CWE listed

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