CVE-2020-3843 json
A memory corruption issue was addressed with improved input validation.
published 2020-02-27 6 y ago modified 2026-06-17 4 mo ago also EUVD-2020-25108
- cvss
- 8.8
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 3.6%
- EPSS 3.6% chance of exploitation in 30 days, percentile 89%
- public exploits
- 0
- none known
Summary
A memory corruption issue was addressed with improved input validation. This issue is fixed in iOS 12.4.7, watchOS 5.3.7. A remote attacker may be able to cause unexpected system termination or corrupt kernel memory.
Patch / fix
- Apple iOS-1 iOS 12.4.7
- Apple watchOS-1 watchOS 5.3.7
Exploit prediction
3.58% chance of exploitation in the next 30 days, higher than 89% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 9.3 | AV:N/AC:M/Au:N/C:C/I:C/A:C |
Affected products
- Apple iOS-1
- Apple watchOS-1
Classification
- Weakness
-
- CWE-787 Out-of-bounds Write
References
-
support.apple.com
/HT211169
vendor-advisory
-
support.apple.com
/HT211176
vendor-advisory
-
packetstormsecurity.com
/files/162119/iOS-macOS-Radio-Proximity-Kernel-Memory-Corruption.html
third-party-advisory, vdb-entry
Sources
- CVE List CVE-2020-3843
- NVD CVE-2020-3843
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