CVE-2021-30665: Apple Multiple Products WebKit Memory Corruption Vulnerability
CVE-2021-30665 · Severity: critical · CVSS 8.8 · Exploited in the wild · Published 2021-11-03
A memory corruption vulnerability in Apple's WebKit engine allows for arbitrary code execution when processing maliciously crafted web content. The issue stems from improper state management and has been reported as being actively exploited in the wild.
Yes. CVE-2021-30665 is known to be exploited in the wild, first recorded on 3 November 2021. Treat it as urgent.
How severe is CVE-2021-30665?
Critical severity, with a CVSS score of 8.8, published 3 November 2021.
Which products and versions are affected?
Apple WebKit; Apple iOS < 14.5.1, < 12.5.3; Apple iPadOS < 14.5.1; Apple macOS Big Sur < 11.3.1; and 2 more.
Is there a fix for CVE-2021-30665?
A patch was published on 2021-05-03: Apple released updates for iOS, iPadOS, and macOS to address the issue. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2021-30665 attacked?
It is attacked over the network, in a software library.
Am I affected by CVE-2021-30665?
Check whether you run Apple Multiple Products. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Affected products
Apple WebKit
Apple iOS < 14.5.1, < 12.5.3
Apple iPadOS < 14.5.1
Apple macOS Big Sur < 11.3.1
Apple tvOS < 14.6
Apple watchOS < 7.4.1
Timeline
2021-09-08: disclosed: NVD Published Date
2021-11-03: kev added: Added to CISA Known Exploited Vulnerabilities Catalog
2021-05-03: patched: Apple released updates for iOS, iPadOS, and macOS to address the issue.
2021-05-14: exploited: Apple reported awareness of active exploitation.