Security readout for executives and security teams
Plain-English summary
A locally running app may expose sensitive information about the operating system kernel. Apple addressed the authentication weakness across supported iPhone, iPad, Mac, Apple TV, Apple Vision Pro, and Apple Watch software. The reported impact is information disclosure, not system modification or disruption.
Executive priority
Prioritize routine deployment across managed Apple fleets, accelerating updates on devices handling sensitive data or permitting less-controlled applications. The moderate rating reflects potentially serious confidentiality loss balanced against local execution requirements and no sourced evidence of exploitation.
Technical view
CVE-2026-28867 is a local confidentiality vulnerability described by Apple as an authentication issue permitting an app to leak sensitive kernel state. CVSS 3.1 is 6.2: local access, low complexity, no privileges or user interaction, high confidentiality impact, and no stated integrity or availability impact.
Likely exposure
Devices running affected Apple operating-system releases below the listed fixed versions may be exposed when an app executes locally. The source bundle does not provide reliable lower version boundaries, affected hardware models, or evidence that every earlier release is vulnerable.
Exploitation context
The source bundle provides no evidence of active exploitation, and the CVE is not listed as KEV. Exploitation requires a malicious or compromised app to run locally, but the supplied sources do not explain the required app permissions, attack mechanics, or leaked kernel information.
Researcher notes
Apple supplies limited technical detail: no CWE, affected component, leaked data type, hardware scope, or authentication boundary is identified. The fixed-version list is clear, but the bundle's affected-version entries contain unusable zero values. Treat broader version exposure as unconfirmed and consult Apple advisories for future clarification.
Mitigation direction
- Update iPhone and iPad devices to iOS or iPadOS 18.7.7 or 26.4.
- Update Macs to macOS Sequoia 15.7.5 or macOS Tahoe 26.4.
- Update Apple TV, Vision Pro, and Apple Watch devices to version 26.4.
- Restrict installation and execution of untrusted apps until affected devices are updated.
Validation and detection
- Inventory Apple devices and record their product and operating-system versions.
- Confirm iPhones and iPads run 18.7.7, 26.4, or a later applicable release.
- Confirm Macs run Sequoia 15.7.5, Tahoe 26.4, or a later applicable release.
- Confirm Apple TV, Vision Pro, and Apple Watch devices run 26.4 or later.
- Review device-management reporting for update failures and unsupported devices.
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-2026-28867 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
- Medium
- CVSS
- 6.2 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
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.
SSVC decision data
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N2.53.6CISA-ADPVulnerability scoring details
Base CVSS 3.1 score
6.2MediumVector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- CVE publishedCVE Program
The CVE record was published.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
Source materials
- CVE List V5 sourceCVE List V5
- https://support.apple.com/en-us/126792CVE reference, apple
- https://support.apple.com/en-us/126793CVE reference, apple
- https://support.apple.com/en-us/126794CVE reference, apple
- https://support.apple.com/en-us/126795CVE reference, apple
- https://support.apple.com/en-us/126797CVE reference, apple
- https://support.apple.com/en-us/126798CVE reference, apple
- https://support.apple.com/en-us/126799CVE reference, apple
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.