THREATPORT/VULNERABILITY/CVE-2020-27904
HIGH SEVERITY

CVE-2020-27904

Macos vulnerability

CVSS
7.8
EPSS
3.1%
EPSS pct
87th
Exploited
No known
A logic issue existed resulting in memory corruption. This was addressed with improved state management. This issue is fixed in macOS Big Sur 11.0.1. An application may be able to execute arbitrary code with kernel privileges.
Affected vendor
Apple
Affected product
Macos
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Published
2020-12-08

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable with local access, low attack complexity, requiring no privileges, user interaction. Successful exploitation leads to high impact to confidentiality, high impact to integrity, high impact to availability.

Its EPSS score of 3.1% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 87% of all scored CVEs.

Check your external exposure to CVE-2020-27904

  • Confirm whether Apple Macos is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2020-27904.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2020-27904

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2020-27904 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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