Vulnerability in Apple Ios
CVE-2021-30858
A use after free issue was addressed with improved memory management. This issue is fixed in iOS 14.8 and iPadOS 14.8, macOS Big Sur 11.6. Processing maliciously crafted web content may lead to arbitrary code execution. Apple is aware of a…
EPSS: 0.008 (74.3th percentile) — read the EPSS interpretation.
Affected products
- Apple Ios — versions unspecified
- Apple Macos — versions unspecified
CISA KEV (Known Exploited Vulnerabilities)
This CVE is on the CISA KEV catalog, added on . CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.
BOD 22-01 due date: .
Required action: Apply updates per vendor instructions.
Public proof-of-concept exploits
References
- support.apple.com/en-us/HT212804 (x_refsource_MISC)
- support.apple.com/en-us/HT212807 (x_refsource_MISC)
- 20210917 APPLE-SA-2021-09-13-3 macOS Big Sur 11.6 (mailing-list, x_refsource_FULLDISC)
- 20210917 APPLE-SA-2021-09-13-1 iOS 14.8 and iPadOS 14.8 (mailing-list, x_refsource_FULLDISC)
- 20210917 APPLE-SA-2021-09-13-5 Safari 14.1.2 (mailing-list, x_refsource_FULLDISC)
- [oss-security] 20210920 WebKitGTK and WPE WebKit Security Advisory WSA-2021-0005 (mailing-list, x_refsource_MLIST)
- FEDORA-2021-c00e45b6c0 (vendor-advisory, x_refsource_FEDORA)
- 20210921 APPLE-SA-2021-09-20-6 Additional information for APPLE-SA-2021-09-13-1 iOS 14.8 and iPadOS 14.8 (mailing-list, x_refsource_FULLDISC)
- 20210921 APPLE-SA-2021-09-20-7 Additional information for APPLE-SA-2021-09-13-3 macOS Big Sur 11.6 (mailing-list, x_refsource_FULLDISC)
- DSA-4975 (vendor-advisory, x_refsource_DEBIAN)
Frequently asked questions
- What is CVE-2021-30858?
- CVE-2021-30858 is a vulnerability in Apple Ios. Published 2021-08-24.
- Is CVE-2021-30858 known to be exploited?
- Yes. CVE-2021-30858 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2021-11-03), indicating it is being actively exploited. 20 public proof-of-concept repositories are indexed.