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Status published
High
CVE-2021-1844
A memory corruption issue was addressed with improved validation. This...
Vulnerability Description
A memory corruption issue was addressed with improved validation. This issue is fixed in iOS 14.4.1 and iPadOS 14.4.1, Safari 14.0.3 (v. 14610.4.3.1.7 and 15610.4.3.1.7), watchOS 7.3.2, macOS Big Sur 11.2.3. Processing maliciously crafted web content may lead to arbitrary code execution.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
No credits recorded in the NVD database.
References
- https://support.apple.com/en-us/HT212220
- https://support.apple.com/en-us/HT212221
- https://support.apple.com/en-us/HT212222
- https://support.apple.com/en-us/HT212223
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/L3L6ZZOU5JS7E3RFYGLP7UFLXCG7TNLU/
- https://support.apple.com/kb/HT212323
- http://seclists.org/fulldisclosure/2021/Apr/55
- https://www.debian.org/security/2021/dsa-4923
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Affected Vendor
Apple
View all reports →Affected Software
macOS
Vulnerable Versions:
unspecified
Timeline
Official Publish:
April 2nd, 2021
Last Modified:
August 3rd, 2024
Added to House:
July 21st, 2026
CVSS Vectors
V3:
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weaknesses (CWE)
No CWE data available
MITRE ATT&CK TTPs
No associated TTPs found for this vulnerability.