CVE-2021-30762

Published: Sep 8, 2021Modified: Oct 23, 2025CISA KEV

8.8

Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Exploitability: 2.8 / Impact: 5.9

Source: NVD

Description

A use after free issue was addressed with improved memory 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..

Affected (1)

Products: Apple: Iphone Os

1 product

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Apple Iphone Os	Before 12.5.4

Related CWEs

The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

References (3)

https://support.apple.com/en-us/HT212548

Source: product-security@apple.com

Release NotesVendor Advisory

https://support.apple.com/en-us/HT212548

Source: af854a3a-2127-422b-91ae-364da2661108

Release NotesVendor Advisory

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-30762

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0

Third Party AdvisoryUS Government Resource

Timeline

No history available yet.