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PatchSiren cyber security CVE debrief

CVE-2022-22620 Apple CVE debrief

CVE-2022-22620 is an Apple WebKit use-after-free vulnerability affecting iOS, iPadOS, and macOS. CISA added it to the Known Exploited Vulnerabilities catalog on the same day it was published, which makes it a high-priority patch item for Apple device fleets. The supplied source corpus does not include deeper technical impact details, so the safest operational takeaway is to apply Apple’s updates promptly and verify that managed devices are fully remediated.

Vendor
Apple
Product
iOS, iPadOS, and macOS
CVSS
Unknown
CISA KEV
Listed
Original CVE published
2022-02-11
Original CVE updated
2022-02-11
Advisory published
2022-02-11
Advisory updated
2022-02-11

Who should care

Apple device administrators, endpoint/security teams managing iOS, iPadOS, or macOS fleets, and users responsible for applying Apple security updates should treat this as urgent because it is listed in CISA’s Known Exploited Vulnerabilities catalog.

Technical summary

The vulnerability is identified as a WebKit use-after-free issue in Apple iOS, iPadOS, and macOS. The available official source material confirms known exploitation tracking via CISA KEV, but the supplied corpus does not provide additional technical details such as exploit conditions, impact scope, or attack prerequisites. From a defensive standpoint, the key action is to move affected Apple devices to the vendor-fixed versions referenced by Apple’s security guidance.

Defensive priority

Urgent. This is a CISA KEV entry, with a remediation due date of 2022-02-25 after the 2022-02-11 addition, so it should be prioritized ahead of routine maintenance items.

Recommended defensive actions

  • Apply Apple security updates for affected iOS, iPadOS, and macOS devices as soon as possible.
  • Confirm fleet-wide compliance, including mobile devices that may not be continuously connected to corporate networks.
  • Use the official Apple security guidance and CISA KEV catalog to validate that all affected versions are remediated.
  • Recheck any exception lists or delayed-update policies to ensure this KEV item is not deferred past the CISA due date.
  • Monitor asset inventory and patch reporting for devices that have not yet received the relevant Apple update.

Evidence notes

The response is limited to the supplied corpus and official references. The CISA KEV source identifies the issue as 'Apple iOS, iPadOS, and macOS Webkit Use-After-Free Vulnerability' and marks it as known exploited, with dateAdded 2022-02-11 and dueDate 2022-02-25. No CVSS score or deeper exploit narrative was supplied, so no unsupported impact claims are included.

Official resources

Publicly disclosed and added to CISA KEV on 2022-02-11; CISA remediation due date was 2022-02-25.