CVE-2020-3837 kev in the critical feed json
A memory corruption issue was addressed with improved memory handling.
published 2020-02-27 6 y ago modified 2026-06-17 4 mo ago also EUVD-2020-25102
- cvss
- 7.8
- version 3.1, CNA
- cisa kev
- Exploited
- added 2022-06-27
- epss
- 14.8%
- EPSS 14.8% chance of exploitation in 30 days, percentile 96%
- public exploits
- 1
- Exploit-DB
Summary
A memory corruption issue was addressed with improved memory handling. 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. An application may be able to execute arbitrary code with kernel privileges.
Patch / fix
cisa required action Apply updates per vendor instructions.
- Apple iOS iOS 13.3.1 and iPadOS 13.3.1
- Apple macOS macOS Catalina 10.15.3
- Apple tvOS tvOS 13.3.1
- Apple watchOS watchOS 6.1.2
Timeline
- First public exploit (EDB-48035)
- Published
- Added to CISA KEV
- CISA patch deadline
- CISA SSVC: exploitation active
Known exploited
- Added
- 4 y ago
- Patch by
- 2022-07-18 (4 y ago)
- Ransomware
- Not known
- Required action
- Apply updates per vendor instructions.
- Vendor, product
- Apple, Multiple Products
- CISA name
- Apple Multiple Products Memory Corruption Vulnerability
CISA SSVC
- Exploitation
- Active, exploited in the wild
- Automatable
- no
- Technical impact
- total
- Assessed
- 21 mo ago
Exploit prediction
14.77% chance of exploitation in the next 30 days, higher than 96% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- EDB-48035 iOS/macOS - Out-of-Bounds Timestamp Write in IOAccelCommandQueue2::processSegmentKernelCommand() dos, 2020-02-10
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 7.8 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| NVD | 3.1 | 7.8 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| CNA | 3.1 | 7.8 | CVSS:3.1/AV:L/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
- Apple macOS
- Apple tvOS
- Apple watchOS
Classification
- Weakness
-
- CWE-787 Out-of-bounds Write
References
-
support.apple.com
/HT210919
release-notes, vendor-advisory
-
support.apple.com
/HT210918
release-notes, vendor-advisory
-
support.apple.com
/HT210921
release-notes, vendor-advisory
-
support.apple.com
/HT210920
release-notes, vendor-advisory
-
cisa.gov
/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-3837
government-resource, us-government-resource
Sources
- CVE List CVE-2020-3837
- NVD CVE-2020-3837
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.