CVE-2020-3837 (GCVE-0-2020-3837)

Vulnerability from cvelistv5 – Published: 2020-02-27 20:45 – Updated: 2025-10-21 23:35
VLAI? CISA KEV
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.
Severity ?
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CWE
  • An application may be able to execute arbitrary code with kernel privileges
Assigner
References
Impacted products
Vendor Product Version
Apple iOS Affected: unspecified , < iOS 13.3.1 and iPadOS 13.3.1 (custom)
Create a notification for this product.
    Apple macOS Affected: unspecified , < macOS Catalina 10.15.3 (custom)
Create a notification for this product.
    Apple tvOS Affected: unspecified , < tvOS 13.3.1 (custom)
Create a notification for this product.
    Apple watchOS Affected: unspecified , < watchOS 6.1.2 (custom)
Create a notification for this product.
CISA KEV
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: 7fe116ac-def8-4e0e-809b-181f0ac6dd19

Vulnerability ID: CVE-2020-3837

Status: Confirmed

Status Updated: 2022-06-27 00:00 UTC

Exploited: Yes

Timestamps
First Seen: 2022-06-27
Asserted: 2022-06-27
Scope
Notes: KEV entry: Apple Multiple Products Memory Corruption Vulnerability | Affected: Apple / Multiple Products | Description: Apple iOS, iPadOS, macOS, tvOS, and watchOS contain a memory corruption vulnerability that could allow an application to execute code with kernel privileges. | Required action: Apply updates per vendor instructions. | Due date: 2022-07-18 | Known ransomware campaign use (KEV): Unknown | Notes (KEV): https://nvd.nist.gov/vuln/detail/CVE-2020-3837
Evidence

Type: Vendor Report

Signal: Successful Exploitation

Confidence: 80%

Source: cisa-kev

Details
Cwes CWE-787
Feed CISA Known Exploited Vulnerabilities Catalog
Product Multiple Products
Due Date 2022-07-18
Date Added 2022-06-27
Vendorproject Apple
Vulnerabilityname Apple Multiple Products Memory Corruption Vulnerability
Knownransomwarecampaignuse Unknown
References
Created: 2026-02-02 12:27 UTC | Updated: 2026-02-02 12:27 UTC
Show details on NVD website
To clipboard 

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}


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Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.