Security readout for executives and security teams
Plain-English summary
This Apple macOS issue could let a malicious app bypass Gatekeeper, the control that helps block untrusted applications. Apple fixed it in macOS Monterey 12.1, Security Update 2021-008 Catalina, and macOS Big Sur 11.6.2. The public record does not provide CVSS, affected build ranges, or evidence of active exploitation.
Executive priority
Prioritize remediation as normal endpoint security hygiene, especially for fleets with broad user software installation. This is not source-supported as actively exploited, but it weakens a core macOS trust control and has vendor-fixed releases.
Technical view
Apple describes CVE-2021-30950 as a logic issue corrected with improved state management. The security impact is Gatekeeper check bypass by a malicious application. The source bundle names macOS broadly and identifies fixed releases, but does not disclose root cause details, exploit prerequisites beyond malicious app execution, or proof-of-concept availability.
Likely exposure
Exposure is most likely on Apple macOS endpoints that have not received macOS Monterey 12.1, macOS Big Sur 11.6.2, or Security Update 2021-008 Catalina. The source bundle does not define exact vulnerable builds or hardware scope.
Exploitation context
The sources state that a malicious application may bypass Gatekeeper checks. They do not show active exploitation, and the CVE is not listed as KEV in the provided bundle. Treat exploitation status as unconfirmed from the supplied evidence.
Researcher notes
The public record is sparse: no CVSS, CWE, detailed affected-version matrix, or technical root cause is provided. Analysis should stay bounded to Gatekeeper bypass on macOS and Apple's fixed releases unless additional vendor or primary-source evidence is collected.
Mitigation direction
- Update Monterey systems to macOS Monterey 12.1 or later.
- Update Big Sur systems to macOS Big Sur 11.6.2 or later.
- Apply Security Update 2021-008 on Catalina systems.
- Check Apple guidance for any newer replacement or supplemental updates.
- Prioritize managed endpoints that allow user-installed applications.
Validation and detection
- Inventory macOS versions across managed and unmanaged endpoints.
- Confirm the listed Apple updates are installed on applicable systems.
- Review endpoint management reports for outdated macOS devices.
- Validate Gatekeeper policy remains enabled where organizational policy requires it.
- Track Apple security bulletins for superseding guidance.
Public sources used
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.
CVE-2021-30950 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
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
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.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://support.apple.com/en-us/HT212978CVE reference · x_refsource_MISC
- https://support.apple.com/en-us/HT212979CVE reference · x_refsource_MISC
- https://support.apple.com/en-us/HT212981CVE reference · x_refsource_MISC
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.