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CVE-2020-3846
A buffer overflow was addressed with improved size validation. This issue is fixed in iOS 13.3.1 and iPadOS 13.3.1, macOS Catalina…
High8.8EPSS 1.8%
- Published
- Updated
- Reserved
- Assigned by
- apple
Description
A buffer overflow was addressed with improved size validation. This issue is fixed in iOS 13.3.1 and iPadOS 13.3.1, macOS Catalina 10.15.3, tvOS 13.3.1, watchOS 6.1.2, iTunes for Windows 12.10.4, iCloud for Windows 11.0, iCloud for Windows 7.17. Processing maliciously crafted XML may lead to an unexpected application termination or arbitrary code execution.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.1 | High8.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 1.8% · top 22% of all CVEs (6 Nov 2026)
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The list uses the assigner's score when there is one, then CISA's, then NVD's: High 8.8.
Weakness
- Processing maliciously crafted XML may lead to an unexpected application termination or arbitrary code execution
- CWE-20 (opens in a new tab)All about CWE-20 and its CVEs
- CWE-119 (opens in a new tab)All about CWE-119 and its CVEs
Affected products
- affected unspecified – < iOS 13.3.1 and iPadOS 13.3.1
- affected unspecified – < macOS Catalina 10.15.3
- affected unspecified – < tvOS 13.3.1
- affected unspecified – < watchOS 6.1.2
- affected unspecified – < iTunes for Windows 12.10.4
- affected unspecified – < iCloud for Windows 11.0
Apple · iCloud for Windows (Legacy)
- affected unspecified – < iCloud for Windows 7.17
References (2)
- https://support.apple.com/HT210947 (opens in a new tab)x_refsource_MISCx_transferred
- https://support.apple.com/HT210948 (opens in a new tab)x_refsource_MISCx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2020-3846)Record last updated .