Security readout for executives and security teams
CVE-2021-30916 is an Apple memory corruption flaw that could let a malicious app gain kernel-level control. Apple says it was fixed in multiple iOS, iPadOS, and macOS releases. Because kernel privileges can undermine device integrity, unpatched managed Apple endpoints should be prioritized for update verification. Exposure is most likely on Apple iOS, iPadOS, and macOS systems below the fixed releases listed by Apple. The affected versions are otherwise unspecified in the bundle, so inventory checks should focus on OS build levels and Apple advisory coverage. Treat as a priority endpoint hygiene issue. Kernel-level impact is serious, but the supplied evidence does not confirm active exploitation. Organizations with managed Apple fleets should verify patch compliance promptly, especially where users can install apps. Mitigation focus: Update iOS and iPadOS to 15.1 or 14.8.1 where applicable.; Update macOS to Monterey 12.0.1, Big Sur 11.6.1, or Security Update 2021-007 Catalina.; Check Apple advisories for device-specific applicability and any later superseding updates..
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
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Execution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2021-30916 mapping review
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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/HT212869CVE reference · x_refsource_MISC
- https://support.apple.com/en-us/HT212871CVE reference · x_refsource_MISC
- https://support.apple.com/en-us/HT212872CVE reference · x_refsource_MISC
- https://support.apple.com/en-us/HT212867CVE reference · x_refsource_MISC
- https://support.apple.com/en-us/HT212868CVE reference · x_refsource_MISC
- https://support.apple.com/kb/HT212975CVE reference · x_refsource_CONFIRM
- https://support.apple.com/kb/HT212980CVE reference · x_refsource_CONFIRM
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.