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CVE-2020-3894
A race condition was addressed with additional validation. This issue is fixed in iOS 13.4 and iPadOS 13.4, tvOS 13.4, Safari 13.1, iTunes…
Low3.1EPSS 1.1%
- Published
- Updated
- Reserved
- Assigned by
- apple
Description
A race condition was addressed with additional validation. This issue is fixed in iOS 13.4 and iPadOS 13.4, tvOS 13.4, Safari 13.1, iTunes for Windows 12.10.5, iCloud for Windows 10.9.3, iCloud for Windows 7.18. An application may be able to read restricted memory.
Timeline
ID reserved
By apple
- 4 months later
· 4 months later
Published
- 4 years later
· 4 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.1 | Low3.1 | CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N |
- EPSS (exploitation in 30 days)
- 1.1% · top 33% of all CVEs (7 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Low 3.1.
Weakness
- An application may be able to read restricted memory
- CWE-362 (opens in a new tab)All about CWE-362 and its CVEs
Affected products
- affected unspecified – < iOS 13.4 and iPadOS 13.4
- affected unspecified – < tvOS 13.4
- affected unspecified – < Safari 13.1
- affected unspecified – < iTunes for Windows 12.10.5
- affected unspecified – < iCloud for Windows 10.9.3
Apple · iCloud for Windows (Legacy)
- affected unspecified – < iCloud for Windows 7.18
References (6)
- https://support.apple.com/HT211102 (opens in a new tab)x_refsource_MISCx_transferred
- https://support.apple.com/HT211101 (opens in a new tab)x_refsource_MISCx_transferred
- https://support.apple.com/HT211104 (opens in a new tab)x_refsource_MISCx_transferred
- https://support.apple.com/HT211105 (opens in a new tab)x_refsource_MISCx_transferred
- https://support.apple.com/HT211106 (opens in a new tab)x_refsource_MISCx_transferred
- https://support.apple.com/HT211107 (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-2020-3894)Record last updated .