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PatchSiren cyber security CVE debrief

CVE-2020-27932 Apple CVE debrief

CVE-2020-27932 is described as a type confusion vulnerability affecting multiple Apple products. CISA added it to the Known Exploited Vulnerabilities catalog, which indicates known exploitation and makes remediation a high priority for any environment running Apple devices. The supplied corpus does not provide impacted-version detail or deeper technical context, so defenders should use the official CVE, NVD, and Apple guidance to confirm exposure and apply the vendor’s updates.

Vendor
Apple
Product
Multiple Products
CVSS
Unknown
CISA KEV
Listed
Original CVE published
2021-11-03
Original CVE updated
2021-11-03
Advisory published
2021-11-03
Advisory updated
2021-11-03

Who should care

Organizations that manage Apple devices, endpoint administrators, security operations teams, and anyone responsible for patch compliance on Apple fleets should treat this as a priority remediation item.

Technical summary

The available records identify this issue as a type confusion vulnerability in multiple Apple products. CISA’s KEV entry confirms it is known to be exploited, but the supplied source material does not include exploit mechanics, affected component names, or version ranges. Because of that, the safest response is to validate exposure against Apple’s advisories and apply the vendor-recommended updates as soon as possible.

Defensive priority

High. KEV inclusion means the issue is confirmed exploited in the wild, and the remediation due date listed by CISA (2022-05-03) has already passed.

Recommended defensive actions

  • Review Apple’s official security guidance for CVE-2020-27932 and identify all affected devices and software versions.
  • Apply Apple-provided security updates as soon as practical across the entire fleet.
  • Prioritize systems that are exposed to untrusted content, user interaction, or broader network access in your patch rollout plan.
  • Verify patch compliance after remediation and rescan to confirm the vulnerability is no longer present.
  • Track this CVE in vulnerability management and KEV compliance reporting until all affected assets are remediated.

Evidence notes

This debrief is limited to the supplied corpus and official links. The strongest evidence is CISA’s Known Exploited Vulnerabilities record, which lists Apple as the vendor project, the product as Multiple Products, date added as 2021-11-03, and required action as applying updates per vendor instructions. No CVSS score, affected versions, or exploit details were included in the provided material.

Official resources

CISA added CVE-2020-27932 to the Known Exploited Vulnerabilities catalog on 2021-11-03 and listed a remediation due date of 2022-05-03.