Security readout for executives and security teams
Plain-English summary
CVE-2021-30985 is an Apple iOS and iPadOS kernel-level memory corruption issue. A malicious app may execute code with kernel privileges. Apple says the issue is fixed in iOS 15.2 and iPadOS 15.2, but the source bundle does not define the full affected version range.
Executive priority
Treat this as a high-priority mobile patching issue because successful exploitation could grant kernel privileges. Urgency is strongest where users can install untrusted apps or devices are unmanaged.
Technical view
Apple describes this as an out-of-bounds write addressed through improved bounds checking. The documented impact is arbitrary code execution with kernel privileges by a malicious application. The source bundle does not identify the vulnerable component, CVSS score, CWE, proof of exploitation, or affected versions beyond the fixed releases.
Likely exposure
Exposure is most likely on iPhone and iPad devices running iOS or iPadOS before 15.2. Exact affected version boundaries are not provided, so vulnerability managers should rely on device inventory and Apple security update guidance.
Exploitation context
The CVE source indicates exploitation would require a malicious application. The bundle does not cite active exploitation, public exploit availability, or CISA KEV listing, so active exploitation should not be assumed.
Researcher notes
Evidence is sparse. Apple confirms an out-of-bounds write and kernel-privilege impact, but the bundle lacks component detail, CVSS, CWE, exploit telemetry, and affected-version granularity. Avoid assuming active exploitation or broader Apple platform impact.
Mitigation direction
- Update eligible devices to iOS 15.2, iPadOS 15.2, or later supported releases.
- Use MDM policy to identify and remediate devices below the fixed release.
- Restrict installation of untrusted applications on unpatched devices.
- Check Apple security guidance for model-specific update availability.
Validation and detection
- Inventory managed iPhone and iPad OS versions.
- Confirm devices report iOS 15.2, iPadOS 15.2, or later.
- Review MDM compliance reports for stale or unmanaged devices.
- Verify app installation controls for devices that cannot be updated.
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.
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-2021-30985 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/HT212976CVE 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.