What is CVE-2021-30761?

CVE-2021-30761 is a memory corruption vulnerability in Apple iOS WebKit.

How does CVE-2021-30761 affect Apple iOS?

CVE-2021-30761 allows for code execution on Apple iOS when processing malicious web content.

What is the severity of CVE-2021-30761?

The severity of CVE-2021-30761 is not specified in the information provided.

How can I fix CVE-2021-30761?

To fix CVE-2021-30761, update your Apple iOS to version 12.5.4.

Where can I find more information about CVE-2021-30761?

You can find more information about CVE-2021-30761 at the following link: [https://support.apple.com/en-us/HT212548](https://support.apple.com/en-us/HT212548)

Vulnerability/
CVE-2021-30761

Exploited

high

8.8

CWE

787

14/6/2021

8/9/2021

3/8/2024

CVE-2021-30761: Apple iOS Memory Corruption Vulnerability

First published: Mon Jun 14 2021(Updated: )

A memory corruption issue was addressed with improved state management. This issue is fixed in iOS 12.5.4. Processing maliciously crafted web content may lead to arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited..

Credit: product-security@apple.com an anonymous researcher product-security@apple.com

Affected Software	Affected Version	How to fix
Apple iPhone OS	<12.5.4
Apple iOS	<12.5.4	12.5.4
Apple iOS
	<12.5.4

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Reference Links

Parent vulnerabilities

(Appears in the following advisories)

HT212548

Peer vulnerabilities

(Found alongside the following vulnerabilities)

Frequently Asked Questions

What is CVE-2021-30761?
CVE-2021-30761 is a memory corruption vulnerability in Apple iOS WebKit.
How does CVE-2021-30761 affect Apple iOS?
CVE-2021-30761 allows for code execution on Apple iOS when processing malicious web content.
What is the severity of CVE-2021-30761?
The severity of CVE-2021-30761 is not specified in the information provided.
How can I fix CVE-2021-30761?
To fix CVE-2021-30761, update your Apple iOS to version 12.5.4.
Where can I find more information about CVE-2021-30761?
You can find more information about CVE-2021-30761 at the following link: [https://support.apple.com/en-us/HT212548](https://support.apple.com/en-us/HT212548)

collector/nvd-index
agent/type
agent/first-publish-date
agent/softwarecombine
collector/apple-support
agent/software-canonical-lookup-request
agent/severity
agent/weakness
agent/title
agent/description
collector/nvd-api
source/NVD
agent/software-canonical-lookup
agent/author
collector/mitre-cve
source/MITRE
agent/last-modified-date
agent/event
exploited/true
collector/cisa-known-exploited
source/CISA
agent/references
agent/tags
collector/nvd-cve
vendor/apple
canonical/apple iphone os
canonical/apple ios

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