Known exploited · Apple

CVE-2020-9934: Apple iOS, iPadOS, and macOS Input Validation Vulnerability

What it is

Apple iOS, iPadOS, and macOS contain an unspecified vulnerability involving input validation which can allow a local attacker to view sensitive user information.

Added September 8, 2022Due September 29, 2022CISA KEV catalog 2026.10.01

Vendor
Apple
Product
iOS, iPadOS, and macOS
Added to KEV
September 8, 2022
CISA due date
September 29, 2022
Ransomware use
Unknown
Weakness
Not mapped by CISA

What CISA requires

Apply updates per vendor instructions.

Forensic triage

No

What to do now

  1. Find every instance of iOS, iPadOS, and macOS you run, including the forgotten ones, and check its version against the vendor advisory.
  2. Apply the vendor's fix or mitigation, before September 29, 2022 if you are bound by CISA's deadline, sooner if it faces the internet.
  3. Assume it was tried against you already: look for signs of exploitation from the date it was added, not from the day you patched.

References

CVE-2020-9934 in the National Vulnerability Database

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Source: CISA Known Exploited Vulnerabilities Catalog (public domain), catalog version 2026.10.01.