Security readout for executives and security teams
Plain-English summary
This Apple vulnerability could allow disclosure of kernel memory on older iPhone, iPad, Apple TV, and Apple Watch software. Apple fixed it through improved input validation in iOS 11.4.1, tvOS 11.4.1, and watchOS 4.3.2. The source bundle does not provide CVSS scoring or confirmed exploitation.
Executive priority
Prioritize cleanup of legacy Apple devices, especially those with corporate data access. This is not evidenced as actively exploited in the supplied sources, but kernel memory disclosure can support broader compromise chains.
Technical view
CVE-2018-4282 is an out-of-bounds read leading to kernel memory disclosure. Affected versions are iOS before 11.4.1, tvOS before 11.4.1, and watchOS before 4.3.2. Apple states the issue was addressed with improved input validation. Prerequisites, attack vector, and detailed component context are not provided in the bundle.
Likely exposure
Exposure is mainly legacy Apple devices still running versions older than iOS 11.4.1, tvOS 11.4.1, or watchOS 4.3.2. Modern managed fleets should have low exposure if updates are enforced.
Exploitation context
The bundle does not cite active exploitation, and KEV is false. Treat this as a known historical Apple kernel memory disclosure issue, not as a currently confirmed exploited vulnerability based on supplied evidence.
Researcher notes
The bundle lacks CVSS, CWE, attack vector, exploitability details, and affected component metadata beyond kernel memory disclosure. Do not infer remote reachability or exploit availability from these sources alone.
Mitigation direction
- Update iOS devices to 11.4.1 or later where supported.
- Update Apple TV devices to tvOS 11.4.1 or later.
- Update Apple Watch devices to watchOS 4.3.2 or later.
- Retire or restrict unsupported devices that cannot receive the fixed versions.
- Check Apple security guidance for device-specific update availability.
Validation and detection
- Inventory Apple devices and record OS versions.
- Flag iOS versions earlier than 11.4.1.
- Flag tvOS versions earlier than 11.4.1.
- Flag watchOS versions earlier than 4.3.2.
- Confirm managed-device update policies enforce fixed or later versions.
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-2018-4282 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/kb/HT208938CVE reference · x_refsource_MISC
- https://support.apple.com/kb/HT208935CVE reference · x_refsource_MISC
- https://support.apple.com/kb/HT208936CVE 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.