Security readout for executives and security teams
Plain-English summary
CVE-2021-30854 is an Apple sandbox bypass issue. A process already running inside a sandbox may escape some intended restrictions. Apple says the issue was fixed through improved state management in iOS 15, iPadOS 15, tvOS 15, and watchOS 8.
Executive priority
Prioritize normal patch compliance for managed Apple fleets, especially devices with sensitive apps or privileged access. Escalate only if internal exposure includes many outdated devices or if new vendor or KEV evidence appears.
Technical view
Apple describes a logic issue that could let a sandboxed process circumvent sandbox restrictions. The public record does not name the affected component, vulnerable version ranges, CVSS score, CWE, prerequisites, or impact beyond sandbox restriction bypass. Fixed releases are iOS/iPadOS 15, tvOS 15, and watchOS 8.
Likely exposure
Exposure is most relevant to Apple mobile, TV, and watch devices running releases older than iOS 15, iPadOS 15, tvOS 15, or watchOS 8. The source bundle does not provide precise vulnerable version ranges.
Exploitation context
The provided sources and KEV flag do not indicate known active exploitation. Public details are limited, so treat this as a post-compromise or chained-exploit risk rather than evidence of standalone remote compromise.
Researcher notes
Public disclosure is sparse. The record identifies a sandbox restriction bypass caused by a logic issue and fixed by improved state management, but does not disclose the affected subsystem, exploitability, or technical indicators.
Mitigation direction
- Upgrade iPhone and iPad fleets to iOS 15/iPadOS 15 or later where vendor-supported.
- Upgrade Apple TV devices to tvOS 15 or later where applicable.
- Upgrade Apple Watch devices to watchOS 8 or later where applicable.
- Monitor Apple advisories for later guidance on affected versions or compensating controls.
Validation and detection
- Use MDM inventory to identify devices below iOS 15, iPadOS 15, tvOS 15, or watchOS 8.
- Confirm managed devices report successful installation of the fixed major OS releases or later.
- Check exception lists for unsupported or unmanaged Apple devices still in business use.
- Review vulnerability scanner findings against Apple device OS version data.
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-2021-30854 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/HT212814CVE reference · x_refsource_MISC
- https://support.apple.com/en-us/HT212819CVE reference · x_refsource_MISC
- https://support.apple.com/en-us/HT212815CVE 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.