Security readout for executives and security teams
Plain-English summary
A nearby or otherwise local attacker could access some Keychain items on an Apple device after user interaction. This could expose stored secrets, but the reported impact is limited to confidentiality; no data modification or service disruption is described. Apple corrected the permissions check in specified operating-system releases.
Executive priority
Treat this as routine but time-bound patching, not an emergency. Accelerate remediation for shared devices and systems containing high-value Keychain credentials. The low severity reflects local access, user interaction, and limited confidentiality impact; it does not make credential exposure harmless.
Technical view
CVE-2026-28864 is an authorization weakness classified as CWE-863. Its CVSS 3.1 score is 3.3: local access, low complexity, no prior privileges, and user interaction are indicated. Successful exploitation may disclose Keychain items. The source bundle does not define complete affected-version ranges.
Likely exposure
Potential exposure includes iOS, iPadOS, macOS, visionOS, and watchOS devices not yet running the listed fixed releases. Exact vulnerable version ranges are unavailable because the supplied affected-version entries are incomplete. Prioritize devices holding privileged, financial, identity, or corporate credentials.
Exploitation context
The attacker must have local access, and the CVSS vector indicates user interaction is required. The bundle reports no CISA KEV listing and provides no evidence of active exploitation, public exploit availability, or remote attackability. No indicators of compromise are supplied.
Researcher notes
The underlying component and specific authorization path are not identified. Apple describes improved permissions checking, while the CVE maps the flaw to CWE-863. The supplied data supports possible Keychain disclosure only; persistence, integrity impact, privilege escalation, affected ranges, exploit maturity, and detection artifacts remain unconfirmed.
Mitigation direction
- Update iOS and iPadOS to 18.7.7 or 26.4, as appropriate for the device branch.
- Update macOS Sequoia to 15.7.5, Sonoma to 14.8.5, or Tahoe to 26.4.
- Update supported visionOS and watchOS devices to 26.4.
- Restrict untrusted local access until affected devices are updated.
- Check Apple guidance for any later superseding security releases.
Validation and detection
- Inventory Apple devices and record their operating-system editions and versions.
- Confirm each device meets or exceeds its applicable fixed release.
- Verify deployment compliance through the organization’s device-management platform.
- Review Apple’s corresponding advisory before classifying unsupported or unlisted versions.
- Document exceptions because complete affected-version ranges are not provided.
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.
CWE-863: Authorization and privilege behavior lookup
Authorization weaknesses can support privilege escalation and valid-account review, depending on exploit path. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2026-28864 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
- Low
- CVSS
- 3.3 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/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:R/S:U/C:L/I:N/A:N1.81.4CISA-ADPVulnerability scoring details
Base CVSS 3.1 score
3.3LowVector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/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/126796CVE 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.
Incorrect Authorization
Incorrect Authorization represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.