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CVE-2020-3837

80
FAUCET Score

CVE-2020-3837 is a memory corruption vulnerability, specifically an out-of-bounds write, affecting Apple's iOS, iPadOS, macOS, tvOS, and watchOS. This flaw allows an application to execute arbitrary code with kernel privileges. With a CVSS score of 7.8 (High) and a FAUCET Risk Score of 99/100, it presents a significant risk, requiring user interaction (UI:R) for exploitation but offering full confidentiality, integrity, and availability impact (C:H/I:H/A:H). The vulnerability has been actively exploited in the wild, as indicated by its presence in the KEV catalog, and exploit code (EDB-48035) is publicly available. It has garnered substantial community discussion and media coverage, including reports of spyware leveraging similar vulnerabilities.

Impacted Technologies

VendorProductVersion(s)CPE
< 13.3.1CPE matchmatch criteria
cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*
< 13.3.1CPE matchmatch criteria
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
< 10.15.3CPE matchmatch criteria
cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:*
< 13.3.1CPE matchmatch criteria
cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:*
< 6.1.2CPE matchmatch criteria
cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.8HIGH

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
14.50%
Probability of exploitation in next 30 days
EPSS Percentile
96.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
Added to KEV · Jun 27, 2022
ExploitDB: EDB-48035 · Feb 10, 2020
This CVE's current EPSS score of 0.1450 is in the 96th percentile among its peer group of 11,616 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (1)

applevendor investigatingvia nvd_reference
View patch

References

cisa.gov / known-exploited-vulnerabilities-catalog
US Government Resource
support.apple.com / HT210918
Release NotesVendor Advisory
support.apple.com / HT210919
Release NotesVendor Advisory
support.apple.com / HT210920
Release NotesVendor Advisory
support.apple.com / HT210921
Release NotesVendor Advisory