Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2020-27950

65
FAUCET Score

CVE-2020-27950 is a memory initialization issue affecting Apple's iOS, iPadOS, macOS, and watchOS, which could allow a malicious application to disclose kernel memory. Rated with a CVSS score of 5.5 (Medium), this vulnerability has a low attack complexity and requires user interaction, but could lead to high confidentiality impact. Critically, this CVE has been actively exploited in the wild, as confirmed by its presence in the KEV catalog and numerous media reports detailing its use by threat actors. Despite active exploitation, no public exploit code is available via Metasploit, Nuclei, or ExploitDB, though it has garnered significant community discussion.

Impacted Technologies

VendorProductVersion(s)CPE
< 14.2CPE matchmatch criteria
cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*
< 12.4.9CPE matchmatch criteria
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
>= 14.0, < 14.2CPE matchmatch criteria
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
< 10.15.7CPE matchmatch criteria
cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*
>= 11.0, < 11.0.1CPE matchmatch criteria
cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*

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
16.52%
Probability of exploitation in next 30 days
EPSS Percentile
96.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
Added to KEV · Nov 3, 2021
This CVE's current EPSS score of 0.1652 is in the 99th percentile among its peer group of 5,760 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

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

cisa.gov / known-exploited-vulnerabilities-catalog
US Government Resource
packetstormsecurity.com / files/161296/XNU-Kernel-Mach-Message-Trailers-Memory-Disclosure.html
Third Party AdvisoryVDB Entry
seclists.org / fulldisclosure/2020/Dec/32
Mailing ListThird Party Advisory
support.apple.com / en-us/HT211928
Vendor Advisory
support.apple.com / en-us/HT211929
Vendor Advisory
support.apple.com / en-us/HT211931
Vendor Advisory
support.apple.com / en-us/HT211940
Vendor Advisory
support.apple.com / en-us/HT211944
Vendor Advisory
support.apple.com / en-us/HT211945
Vendor Advisory
support.apple.com / en-us/HT211946
Vendor Advisory
support.apple.com / en-us/HT211947
Vendor Advisory