CVEs / CVE-2020-3837
CVE-2020-3837: Apple Multiple Products Memory Corruption Vulnerability
- Known exploited in the CISA KEV catalog since 27 Jun 2022
- high 7.8 CVSS 3.1 (NVD)
- EPSS 14.7% chance of exploitation in the next 30 days, higher than 96% of CVEs (30 Oct 2026)
- Last changed at its sources
Are you affected? Check your servers with Stackurity: it lists the software on each server and the vulnerabilities to fix first.
Check your servers with Stackurity Already using Stackurity? Search for CVE-2020-3837
Summary
Apple iOS, iPadOS, macOS, tvOS, and watchOS contain a memory corruption vulnerability that could allow an application to execute code with kernel privileges.
Description
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.
Affected and fixed versions
| Product | Affected | Fixed in |
|---|---|---|
| Apple iOS | from unspecified, before iOS 13.3.1 and iPadOS 13.3.1 | iOS 13.3.1 and iPadOS 13.3.1 |
| Apple macOS | from unspecified, before macOS Catalina 10.15.3 | macOS Catalina 10.15.3 |
| Apple tvOS | from unspecified, before tvOS 13.3.1 | tvOS 13.3.1 |
| Apple watchOS | from unspecified, before watchOS 6.1.2 | watchOS 6.1.2 |
Exploitation
| In CISA KEV since | 27 Jun 2022 |
|---|---|
| Due date for US federal agencies | 18 Jul 2022 |
| Used in ransomware campaigns | Unknown |
| Required action | Apply updates per vendor instructions. |
Severity
| CVSS 3.1 | 7.8 highCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HScored by NVD |
|---|---|
| Weakness | CWE-787 |
References
- CVE-2020-3837 on NVD
- CVE-2020-3837 in the CISA KEV catalog
- https://support.apple.com/HT210918 Release Notes, Vendor Advisory
- https://support.apple.com/HT210919 Release Notes, Vendor Advisory
- https://support.apple.com/HT210920 Release Notes, Vendor Advisory
- https://support.apple.com/HT210921 Release Notes, Vendor Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-3837 US Government Resource
Sources
Exploitation status from the CISA Known Exploited Vulnerabilities catalog. EPSS scores from FIRST. Descriptions, severity and references from the National Vulnerability Database. Open-source package versions from OSV (CC-BY 4.0). Text is shown as each source states it; Stackurity does not edit it. Check the vendor's advisory before acting.
This product uses data from the NVD API but is not endorsed or certified by the NVD.