Security readout for executives and security teams
Plain-English summary
CVE-2021-31000 is an Apple permissions flaw that could let a malicious app read sensitive contact information. Apple says it was fixed by improved validation in iOS/iPadOS 15.2, watchOS 8.3, macOS Monterey 12.1, and tvOS 15.2. Sources provide no CVSS score or active exploitation evidence.
Executive priority
Treat this as a privacy-impacting Apple fleet hygiene issue. Prioritize remediation for devices handling employee, customer, or executive contact data, especially unmanaged or outdated endpoints.
Technical view
The issue is described as a permissions validation flaw affecting Apple platforms. The stated impact is unauthorized access to sensitive contact information by a malicious application. Public details do not identify a CWE, CVSS vector, precise vulnerable version ranges, exploit mechanism, or affected component beyond Apple security update references.
Likely exposure
Organizations may be exposed if Apple devices remain below iOS/iPadOS 15.2, watchOS 8.3, macOS Monterey 12.1, or tvOS 15.2. Risk depends on malicious application presence and access to local contact data.
Exploitation context
CISA KEV is false in the provided bundle, and no cited source claims active exploitation. The available public description only says a malicious application may read sensitive contact information, without exploit prerequisites or telemetry.
Researcher notes
Evidence is sparse. The CVE and Apple advisories identify the impact and fixed releases, but not the vulnerable component, root cause class, vulnerable version boundaries, or exploitability details. Avoid assuming broader data access than contacts.
Mitigation direction
- Update Apple devices to the fixed releases or later supported versions.
- Use MDM inventory to identify devices below Apple’s fixed OS versions.
- Restrict installation of untrusted or unmanaged applications.
- Review contact privacy permissions for installed applications.
- Check Apple advisories for product-specific update guidance.
Validation and detection
- Confirm OS versions across iOS, iPadOS, watchOS, macOS, and tvOS assets.
- Compare fleet inventory against Apple’s fixed release versions.
- Review MDM compliance reports for outdated or unmanaged Apple devices.
- Audit applications with Contacts access where platform controls allow.
- Document exceptions for devices that cannot receive supported updates.
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-2021-31000 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/HT212975CVE reference · x_refsource_MISC
- https://support.apple.com/en-us/HT212976CVE reference · x_refsource_MISC
- https://support.apple.com/en-us/HT212978CVE reference · x_refsource_MISC
- https://support.apple.com/en-us/HT212980CVE 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.