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CVE Record

CVE-2021-30995: A race condition was addressed with improved state handling.

A race condition was addressed with improved state handling. This issue is fixed in macOS Big Sur 11.6.2, tvOS 15.2, macOS Monterey 12.1, Security Update 2021-008 Catalina, iOS 15.2 and iPadOS 15.2, watchOS 8.3. A malicious application may be able to elevate privileges.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

CVE-2021-30995 is an Apple operating-system privilege escalation issue. Apple says a malicious application may be able to gain higher privileges because of a race condition. The issue is fixed across listed macOS, iOS, iPadOS, tvOS, and watchOS releases.

Executive priority

Patch through normal endpoint and mobile-device update processes, with priority for devices that can run user-installed apps. No active exploitation is cited in the provided sources, but privilege escalation can increase impact after initial compromise.

Technical view

The public description identifies a race condition corrected through improved state handling. Affected Apple platforms include macOS, iOS/iPadOS, tvOS, and watchOS, with fixed versions named by Apple. The source bundle does not provide CVSS, CWE, exploit details, or affected version ranges before the fixed releases.

Likely exposure

Exposure is most likely on Apple devices running versions earlier than macOS Big Sur 11.6.2, macOS Monterey 12.1, Security Update 2021-008 Catalina, iOS/iPadOS 15.2, tvOS 15.2, or watchOS 8.3. Exact affected lower-bound versions are not provided.

Exploitation context

The source bundle says a malicious application may elevate privileges. It does not identify active exploitation, public exploit code, or inclusion in CISA KEV. Treat this as a local post-compromise or malicious-app risk unless vendor guidance says otherwise.

Researcher notes

Public evidence is sparse. Apple attributes the issue to a race condition and improved state handling, but the bundle lacks component, CVSS, CWE, vulnerable version ranges, and technical exploit detail. ZDI is referenced, but no additional advisory content was supplied here.

Mitigation direction

  • Update affected Apple devices to the fixed OS or security update versions named by Apple.
  • Prioritize user workstations and mobile devices where untrusted applications can be installed.
  • Use MDM controls to limit untrusted app installation until patch compliance is confirmed.
  • Check Apple security update pages for platform-specific applicability and any superseding updates.

Validation and detection

  • Inventory Apple device OS versions across macOS, iOS, iPadOS, tvOS, and watchOS fleets.
  • Confirm devices meet or exceed the Apple fixed versions listed for this CVE.
  • Review patch-management or MDM reports for devices missing the relevant security update.
  • Investigate recent suspicious or untrusted application installations on unpatched devices.
Prepared
Confidence
medium
Sources
9

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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-2021-30995 mapping review

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

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.

0CVSS vectors
0Timeline events
0ADP providers
8Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
ApplewatchOSunspecifiedListed
AppleiOS and iPadOSunspecifiedListed
ApplemacOSunspecifiedListed
ApplemacOSunspecifiedListed
ApplemacOSunspecifiedListed
ApplemacOSunspecifiedListed
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.