CVE-2021-1820: CVE-2021-1820

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I. Basic Information for CVE-2021-1820

Vulnerability Information

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Vulnerability Title

N/A

Source: NVD (National Vulnerability Database)

Vulnerability Description

A memory initialization issue was addressed with improved memory handling. This issue is fixed in macOS Big Sur 11.3, iOS 14.5 and iPadOS 14.5, watchOS 7.4, tvOS 14.5. Processing maliciously crafted web content may result in the disclosure of process memory.

Source: NVD (National Vulnerability Database)

CVSS Information

N/A

Source: NVD (National Vulnerability Database)

Vulnerability Type

N/A

Source: NVD (National Vulnerability Database)

Vulnerability Title

Apple macOS多款产品安全漏洞

Source: CNNVD (China National Vulnerability Database)

Vulnerability Description

Apple macOS是美国苹果（Apple）公司的一套专为Mac计算机所开发的专用操作系统。 Apple macOS多款产品存在安全漏洞，以下产品及版本受到影响：macOS Big Sur 11.3、iOS 14.5 和 iPadOS 14.5、watchOS 7.4、tvOS 14.5之前受影响

Source: CNNVD (China National Vulnerability Database)

CVSS Information

N/A

Source: CNNVD (China National Vulnerability Database)

Vulnerability Type

N/A

Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor	Product	Affected Versions	CPE
Apple	iOS and iPadOS	unspecified ~ 14.5	-
Apple	tvOS	unspecified ~ 14.5	-
Apple	watchOS	unspecified ~ 7.4	-
Apple	macOS	unspecified ~ 11.3	-

II. Public POCs for CVE-2021-1820

#	POC Description	Source Link	Shenlong Link

AI-Generated POCPremium

No public POC found.

III. Intelligence Information for CVE-2021-1820

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https://support.apple.com/en-us/HT212323x_refsource_MISC
https://support.apple.com/en-us/HT212325x_refsource_MISC
https://support.apple.com/en-us/HT212324x_refsource_MISC
https://support.apple.com/en-us/HT212317x_refsource_MISC
https://nvd.nist.gov/vuln/detail/CVE-2021-1820

IV. Related Vulnerabilities

Same product: iOS and iPadOS

Same vendor: Apple

V. Comments for CVE-2021-1820

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I. Basic Information for CVE-2021-1820

Vulnerability Information

Vulnerability Title

Vulnerability Description

CVSS Information

Vulnerability Type

Vulnerability Title

Vulnerability Description

CVSS Information

Vulnerability Type

Affected Products

II. Public POCs for CVE-2021-1820

III. Intelligence Information for CVE-2021-1820

IV. Related Vulnerabilities

V. Comments for CVE-2021-1820

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