Security readout for executives and security teams
Plain-English summary
This Apple vulnerability can let a remote attacker crash or disrupt affected devices without authentication or user interaction. It threatens availability rather than data confidentiality or integrity. Apple addressed it through stronger type checks in specified iOS, iPadOS, macOS, tvOS, visionOS, and watchOS releases.
Executive priority
Treat this as a prompt patching priority, particularly where Apple devices support critical operations. The reported impact is service disruption, not data theft or modification. Because no active exploitation is established, this does not alone justify emergency incident response, but unauthenticated remote reachability increases urgency.
Technical view
CVE-2026-28983 is a CWE-843 type-confusion flaw with CVSS 3.1 score 7.5. Its vector indicates network reachability, low attack complexity, no privileges, and no user interaction. Reported impact is high availability loss; the supplied sources do not identify the affected component or triggering protocol.
Likely exposure
Apple devices not running the applicable fixed release may be exposed. Fixed releases are iOS/iPadOS 18.7.9 or 26.5, macOS Sequoia 15.7.8, Sonoma 14.8.8, Tahoe 26.5, and version 26.5 for tvOS, visionOS, and watchOS. Exact vulnerable version ranges are not provided.
Exploitation context
The supplied record says a remote attacker may cause denial of service. It provides no evidence of active exploitation, and the CVE is not identified as a CISA KEV entry. Public exploit availability and practical attack prerequisites are not established by this bundle.
Researcher notes
The record attributes the weakness to type confusion corrected with improved checks. It does not disclose the affected subsystem, input path, crash behavior, or vulnerable lower bounds. Researchers should avoid inferring memory disclosure or code execution: the documented impact is denial of service only.
Mitigation direction
- Install the applicable Apple fixed release on every supported affected device.
- Prioritize internet-facing, operationally critical, and shared Apple devices.
- Apply iOS and iPadOS 18.7.9 or 26.5, according to the device branch.
- Apply macOS Sequoia 15.7.8, Sonoma 14.8.8, or Tahoe 26.5, as applicable.
- Apply tvOS, visionOS, and watchOS 26.5 where applicable.
- Check Apple security guidance for deployment constraints or subsequent revisions.
Validation and detection
- Inventory affected Apple devices and record their operating-system versions.
- Compare each device against the applicable fixed release listed by Apple.
- Verify updates completed successfully through device-management or local version reporting.
- Investigate unexplained crashes or availability disruptions without treating them as proof of exploitation.
- Recheck Apple advisories for clarified affected ranges or exploitation information.
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-843: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. 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-2026-28983 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
- High
- CVSS
- 7.5 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
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:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H3.93.6CISA-ADPVulnerability scoring details
Base CVSS 3.1 score
7.5HighVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
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/127110CVE reference, apple
- https://support.apple.com/en-us/127111CVE reference, apple
- https://support.apple.com/en-us/127115CVE reference, apple
- https://support.apple.com/en-us/127118CVE reference, apple
- https://support.apple.com/en-us/127119CVE reference, apple
- https://support.apple.com/en-us/127120CVE reference, apple
- https://support.apple.com/en-us/128071CVE reference, apple
- https://support.apple.com/en-us/128072CVE 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.
Access of Resource Using Incompatible Type ('Type Confusion')
Access of Resource Using Incompatible Type ('Type Confusion') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.