Security readout for executives and security teams
CVE-2020-27950 is an Apple kernel memory disclosure flaw. A malicious app could reveal sensitive kernel memory. Apple fixed it across macOS, iOS, iPadOS, and watchOS updates in 2020. Although the CVSS score is medium, CISA KEV listing makes it a higher operational priority for lagging Apple fleets. Exposure is most likely on unmanaged or legacy Apple devices running versions earlier than the listed 2020 fixes, including older macOS Catalina, Mojave, High Sierra, Big Sur, iOS/iPadOS, and watchOS builds. Treat this as urgent for any Apple fleet with legacy devices. The technical severity is medium, but known exploitation and kernel memory exposure justify accelerated patch verification and exception review. Mitigation focus: Apply the Apple fixed releases listed in the vendor advisories.; Prioritize devices below fixed versions because this CVE is in CISA KEV.; Use MDM compliance rules to block or quarantine outdated Apple OS builds..
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-665: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2020-27950 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Medium
- CVSS
- 5.5 (3.1)
- Known Exploited
- Yes
- Published
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CISA KEV status
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N1.83.6Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
5.5MediumVector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://support.apple.com/en-us/HT211931CVE reference · x_refsource_MISC
- https://support.apple.com/en-us/HT211928CVE reference · x_refsource_MISC
- https://support.apple.com/en-us/HT211929CVE reference · x_refsource_MISC
- https://support.apple.com/en-us/HT211940CVE reference · x_refsource_MISC
- https://support.apple.com/en-us/HT211944CVE reference · x_refsource_MISC
- https://support.apple.com/en-us/HT211945CVE reference · x_refsource_MISC
- https://support.apple.com/en-us/HT211946CVE reference · x_refsource_MISC
- https://support.apple.com/en-us/HT211947CVE reference · x_refsource_MISC
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-27950CVE reference · government-resource
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Improper Initialization
Improper Initialization represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.