CVE-2020-27950: Apple Multiple Products Memory Initialization Vulnerability

CVE-2020-27950 · Severity: critical · CVSS 5.5 · Exploited in the wild · Published 2021-11-03

Apple iOS, iPadOS, macOS, and watchOS contain a memory initialization vulnerability in the kernel. A malicious application can exploit this flaw to disclose sensitive kernel memory.

Technologies: Apple Multiple Products. Vendors: Apple.

Quick answers

Is CVE-2020-27950 exploited in the wild?
Yes. CVE-2020-27950 is known to be exploited in the wild, first recorded on 3 November 2021. Treat it as urgent.
How severe is CVE-2020-27950?
Critical severity, with a CVSS score of 5.5, published 3 November 2021.
Which products and versions are affected?
Apple iOS < 12.4.9, 14.0 - 14.2; Apple iPadOS < 14.2; Apple macOS < 10.15.7, 11.0 - 11.0.1; Apple watchOS < 5.3.9, 6.0 - 6.2.9, 7.0 - 7.1.
Is there a fix for CVE-2020-27950?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2020-27950 attacked?
It is attacked with local access, in an operating system.
Am I affected by CVE-2020-27950?
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 iOS < 12.4.9, 14.0 - 14.2
  • Apple iPadOS < 14.2
  • Apple macOS < 10.15.7, 11.0 - 11.0.1
  • Apple watchOS < 5.3.9, 6.0 - 6.2.9, 7.0 - 7.1

Timeline

  • 2020-12-09: disclosed: Initial analysis by NIST
  • 2021-11-03: kev added: Added to CISA Known Exploited Vulnerabilities Catalog
  • exploited: Reported as exploited in the wild in the advisory metadata.

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