CVE-2020-3914 json
A memory initialization issue was addressed with improved memory handling.
published 2020-04-01 6 y ago modified 2026-06-17 4 mo ago also EUVD-2020-25179
- cvss
- 5.5
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.8%
- EPSS 0.8% chance of exploitation in 30 days, percentile 55%
- public exploits
- 0
- none known
Summary
A memory initialization issue was addressed with improved memory handling. This issue is fixed in iOS 13.4 and iPadOS 13.4, macOS Catalina 10.15.4, tvOS 13.4, watchOS 6.2. An application may be able to read restricted memory.
Patch / fix
- Apple iOS iOS 13.4 and iPadOS 13.4
- Apple macOS macOS Catalina 10.15.4
- Apple tvOS tvOS 13.4
- Apple watchOS watchOS 6.2
Exploit prediction
0.77% chance of exploitation in the next 30 days, higher than 55% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 5.5 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N |
| NVD | 2.0 | 4.3 | AV:N/AC:M/Au:N/C:P/I:N/A:N |
Affected products
- Apple iOS
- Apple macOS
- Apple tvOS
- Apple watchOS
Classification
- Weakness
-
- CWE-401 Missing Release of Memory after Effective Lifetime
References
-
support.apple.com
/HT211100
vendor-advisory
-
support.apple.com
/HT211102
vendor-advisory
-
support.apple.com
/HT211101
vendor-advisory
-
support.apple.com
/HT211103
vendor-advisory
Sources
- CVE List CVE-2020-3914
- NVD CVE-2020-3914
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.