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CVE-2021-30661

Severity not reported CISA KEV
Data quality: kev only. This record comes from the CISA KEV catalog only; NVD details have not been synced yet.

Apple Multiple Products WebKit Storage Use-After-Free Vulnerability

Vendor / product: Apple — Multiple Products

Apple iOS, iPadOS, macOS, tvOS, watchOS, and Safari WebKit Storage contain a use-after-free vulnerability that leads to code execution when processing maliciously crafted web content. This vulnerability could impact HTML parsers that use WebKit, including but not limited to Apple Safari and non-Apple products which rely on WebKit for HTML processing.

CVSS
—
Not reported by the source
Timeline (UTC)
Published: not reported
Modified: not reported
NVD status: not reported
Last synced 1 day ago
Verified against the source API 2026-10-27 06:50 UTC
Exploitation
Listed in CISA KEV
Added 2021-11-03 · due 2021-11-17
Known ransomware use: Unknown

Required action (CISA)

Apply updates per vendor instructions.

Affected products

Not reported by the source (unknown — not "none").

Weakness classification (CWE)

Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.

Mitigation & advisories

No vendor advisory or patch reference tagged by NVD. Check the references below.

References

  • No references reported.

Data sources

CISA KEV — fetched 2026-10-27 06:50 UTC · record ↗

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