Home › Exploited CVEs › CVE-2020-9818
CVE-2020-9818: Apple iOS, iPadOS, and watchOS Out-of-Bounds Write Vulnerability
Apple iOS, iPadOS, and watchOS · in CISA KEV since 2021-11-03
2021-11-03added to KEV
2022-05-03federal remediation due date
2.29%EPSS exploit probability (30 days) 82.5th percentile
8.8 HIGHCVSS 3.1
Unknownknown ransomware use
512days from NVD publication to KEV
What it is
Apple iOS, iPadOS, and watchOS Mail contains an out-of-bounds write vulnerability which may allow memory modification or application termination when processing a maliciously crafted mail message.
Required action (CISA)
Apply updates per vendor instructions.
| CWE | CWE-787 |
|---|---|
| CVSS vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| NVD published | 2020-06-09 (Analyzed) |
Original records: NVD · CISA KEV · JSON: /api/cve/CVE-2020-9818.json · all KEV CVEs
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Get the full file: Exploited Vulnerabilities Brief – September 2026 ($29): this month's KEV additions ranked by EPSS, ransomware use and due date, ready to hand to a patch team. Checkout by Polar.