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CVE-2020-9944

21
FAUCET Score

CVE-2020-9944 is an out-of-bounds read vulnerability affecting Apple's iOS, iPadOS, macOS, tvOS, and watchOS, allowing an application to potentially read restricted memory. With a CVSS score of 5.5 (Medium), it requires user interaction and local access for exploitation, leading to a high impact on confidentiality. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this vulnerability. The issue has been patched in macOS Big Sur 11.0.1, watchOS 7.0, tvOS 14.0, iOS 14.0, and iPadOS 14.0.

Impacted Technologies

VendorProductVersion(s)CPE
< 14.0CPE matchmatch criteria
cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*
< 14.0CPE matchmatch criteria
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
< 11.1CPE matchmatch criteria
cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:*
>= 10.14, < 10.14.6CPE matchmatch criteria
cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:*
>= 10.15, < 10.15.7CPE matchmatch criteria
cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.5MEDIUM

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
1.8
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.14%
Probability of exploitation in next 30 days
EPSS Percentile
63.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0114 is in the 74th percentile among its peer group of 5,765 CVEs.

Social Chatter

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

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (1)

applevendor investigatingvia nvd_reference
View patch

References

seclists.org / fulldisclosure/2020/Dec/26
Mailing ListThird Party Advisory
seclists.org / fulldisclosure/2020/Dec/32
Mailing ListThird Party Advisory
support.apple.com / en-us/HT211843
Release NotesVendor Advisory
support.apple.com / en-us/HT211844
Release NotesVendor Advisory
support.apple.com / en-us/HT211850
Release NotesVendor Advisory
support.apple.com / en-us/HT211931
Release NotesVendor Advisory
support.apple.com / kb/HT212011
Vendor Advisory