Vulnerability Intelligence Report
Apple iOS, iPadOS, and watchOS Memory Corruption Vulnerability
CVE-2020-9819
A memory consumption issue was addressed with improved memory handling. This issue is fixed in iOS 13.5 and iPadOS 13.5, iOS 12.4.7, watchOS 6.2.5, watchOS 5.3.7. Processing a maliciously crafted mail message may lead to heap corruption.
CISA KEV
SSVC: Active Exploitation
CVSS Base Score
4.3
MEDIUM
Exploitability:2.9
Impact Score:1.5
EPSS Probability:2.18%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
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Authentication
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Weaponization
—
SSVC Action
—
Weaknesses (CWE)
CWE-787 ↗CWE-787 Out-of-bounds Write
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| Apple | iOS | unspecified < iOS 13.5 and iPadOS 13.5 (affected) |
| Apple | iOS-1 | unspecified < iOS 12.4.7 (affected) |
| Apple | watchOS | unspecified < watchOS 6.2.5 (affected) |
| Apple | watchOS-1 | unspecified < watchOS 5.3.7 (affected) |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | Apple Inc. · Vendor · USA |
| Reserved | 2020-03-02T00:00:00 |
| Published | 2020-06-09T16:12:28 |
| Last Updated | 2025-12-20T04:55:57 |
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