Security readout for executives and security teams
Plain-English summary
CVE-2021-30918 is an Apple iOS and iPadOS Lock Screen privacy issue. Apple says a user may be able to view restricted content from the Lock Screen. The source bundle does not provide CVSS scoring, affected version ranges, or evidence of active exploitation.
Executive priority
Treat as a privacy and device-hygiene issue. It does not show confirmed active exploitation in the provided sources, but outdated mobile devices with sensitive notifications or content should be remediated promptly.
Technical view
Apple describes the flaw as a Lock Screen state-management issue fixed with improved state management. Fixed releases named are iOS/iPadOS 14.8.1 and iOS/iPadOS 15.0.1. The sources do not provide CWE, proof-of-concept details, or precise vulnerable build ranges.
Likely exposure
Exposure is most relevant to iPhones and iPads running versions before the named fixed releases. Business impact is primarily unauthorized local viewing of restricted content, especially on lost, unattended, shared, or high-value devices.
Exploitation context
The provided sources do not state active exploitation, and CISA KEV is false in the bundle. The described access condition implies local Lock Screen interaction rather than remote compromise, but no exploitation mechanics are provided.
Researcher notes
Evidence is sparse: Apple provides a short impact statement and fixed versions, without CVSS, CWE, vulnerable build ranges, or reproduction details. Avoid assuming remote exploitability or broader Apple product impact from these sources alone.
Mitigation direction
- Update iPhones and iPads to Apple fixed releases or later.
- Use MDM to enforce minimum iOS and iPadOS versions.
- Prioritize executive, shared, and regulated-data devices for update verification.
- Check Apple security advisories for any later clarification.
Validation and detection
- Inventory iOS and iPadOS versions across managed devices.
- Flag devices below iOS/iPadOS 14.8.1 or 15.0.1.
- Confirm MDM compliance policies block outdated OS versions.
- Review exception lists for unmanaged or personally owned devices.
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
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CVE-2021-30918 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/HT212868CVE reference · x_refsource_MISC
- https://support.apple.com/en-us/HT212866CVE reference · x_refsource_MISC
- https://support.apple.com/kb/HT213183CVE 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.