Security readout for executives and security teams
Plain-English summary
CVE-2026-28877 is an Apple authorization flaw that could let an app access sensitive user data. Apple says it fixed the issue with improved state management across current iOS, iPadOS, macOS, visionOS, and watchOS releases. Business urgency is moderate: data exposure is the concern, but the cited CVSS vector requires local app execution and user interaction.
Executive priority
Treat this as a routine but important Apple patching item. Prioritize devices with sensitive data access and unmanaged app exposure. There is no cited evidence of active exploitation, but the confidentiality impact justifies timely remediation.
Technical view
The CVE maps to CWE-200 and CVSS 3.1 score 5.5: AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N. Apple describes an authorization issue fixed through improved state management. The provided sources identify fixed releases but do not provide detailed vulnerable version ranges, affected components, proof-of-concept details, or exploit telemetry.
Likely exposure
Exposure is most likely on Apple devices below the listed fixed releases, especially managed or personal devices that can install apps and handle sensitive user data. The source bundle does not define exact vulnerable version ranges beyond Apple’s fixed release lines.
Exploitation context
No provided source states active exploitation, and KEV is false. The CVSS vector indicates a local attack path with low complexity, no privileges required, and user interaction required. The documented impact is sensitive data disclosure, not integrity or availability loss.
Researcher notes
Evidence is limited to Apple’s brief advisory language and CVE metadata. The issue is described as authorization state management leading to possible sensitive user data access by an app. Do not infer affected components, sandbox boundaries, exploitability details, or vulnerable version ranges beyond the listed fixed releases.
Mitigation direction
- Update iOS and iPadOS to 18.7.9, 26.4, or later as applicable.
- Update macOS to Sequoia 15.7.5, Sonoma 14.8.5, Tahoe 26.4, or later.
- Update visionOS and watchOS to 26.4 or later.
- Prioritize devices used by executives, administrators, and staff handling sensitive data.
- Check Apple advisories for any platform-specific deployment guidance or later corrections.
Validation and detection
- Inventory Apple devices by platform and operating system version.
- Confirm each device meets or exceeds the fixed version for its release line.
- Review patch-management reports for failed or deferred updates.
- Track exceptions for devices that cannot upgrade immediately.
- Recheck Apple advisories for updated affected-version details.
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-200: Information exposure and cloud metadata lookup
Information exposure and SSRF weaknesses can make discovery, cloud metadata, and credential material review relevant. 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-2026-28877 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
- 5.5 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/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:R/S:U/C:H/I:N/A:N1.83.6CISA-ADPVulnerability scoring details
Base CVSS 3.1 score
5.5MediumVector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/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/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
- https://support.apple.com/en-us/127111CVE 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.
Exposure of Sensitive Information to an Unauthorized Actor
Exposure of Sensitive Information to an Unauthorized Actor represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.