November 3, 2021 · Applied Cybernetics Group
CVE-2020-9819 — Apple iOS, iPadOS, and watchOS
Apple iOS, iPadOS, and watchOS Memory Corruption Vulnerability
- Added to KEV
2021-11-03- Federal due date
2022-05-03- Vendor
- Apple
- Product
- iOS, iPadOS, and watchOS
- EPSS
- 70.0th percentile (score 0.006, as of
2026-06-08) - NVD CVSS v3.1
- —
- Ransomware use
- Unknown
- Upstream
- https://nvd.nist.gov/vuln/detail/CVE-2020-9819
CISA short description
Apple iOS, iPadOS, and watchOS Mail contains a memory corruption vulnerability that may allow heap corruption when processing a maliciously crafted mail message.
Required action
Apply updates per vendor instructions.