CVE-2020-9819
Apple iOS, iPadOS, and watchOS Memory Corruption Vulnerability
Summary
Apple iOS, iPadOS, and watchOS Mail contains a memory corruption vulnerability that may allow heap corruption when processing a maliciously crafted mail message.
Affected software
Vendor: Apple · Product: iOS, iPadOS, and watchOS
Weakness types (CWE):
What to do
This vulnerability appears in CISA's Known Exploited Vulnerabilities catalog, meaning it is being exploited in the wild. Prioritize patching affected systems and verify exposure across your estate.
Related vulnerabilities in Apple
| CVE | Name | EPSS | Exploited |
|---|---|---|---|
| CVE-2021-30860 | Apple Multiple Products Integer Overflow Vulnerability | 76.0% | Yes |
| CVE-2021-30657 | Apple macOS Unspecified Vulnerability | 68.5% | Yes |
| CVE-2016-4657 | Apple iOS Webkit Memory Corruption Vulnerability | 66.8% | Yes |
| CVE-2025-43300 | Apple iOS, iPadOS, and macOS Out-of-Bounds Write Vulnerability | 65.2% | Yes |
| CVE-2023-41064 | Apple iOS, iPadOS, and macOS ImageIO Buffer Overflow Vulnerability | 53.4% | Yes |
| CVE-2023-32434 | Apple Multiple Products Integer Overflow Vulnerability | 51.5% | Yes |
| CVE-2014-4404 | Apple OS X Heap-Based Buffer Overflow Vulnerability | 48.9% | Yes |
| CVE-2016-4655 | Apple iOS Information Disclosure Vulnerability | 33.4% | Yes |
Is your domain exposed?
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Get your free reportSources: CISA KEV catalog · NVD · FIRST EPSS
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