Security readout for executives and security teams
Plain-English summary
Apple devices may unexpectedly terminate an application when processing a maliciously crafted file. Apple addressed the issue through improved checks in specified iOS, iPadOS, macOS, and visionOS releases. The public information does not identify the affected application, component, or file format.
Executive priority
Accelerate patching across managed Apple fleets, prioritizing devices that routinely receive or process external files. Treat this as high priority, but the supplied evidence does not justify declaring an active-exploitation emergency. Track update coverage because affected component and file-type details remain undisclosed.
Technical view
CVE-2026-28936 is classified as CWE-20 improper input validation with CVSS 3.1 score 7.5. The vector claims network reachability, low complexity, no privileges, no user interaction, and high confidentiality impact. However, the narrative only documents unexpected application termination, creating an unresolved impact inconsistency.
Likely exposure
Exposure includes Apple devices running releases older than the applicable fixed versions that process a maliciously crafted file. The supplied affected-version ranges are placeholders, so precise vulnerable starting versions and affected components cannot be determined from this bundle.
Exploitation context
The source bundle does not establish active exploitation, and the CVE is not identified as KEV. No public exploit evidence is supplied. Although the CVSS vector states no user interaction, the description only says that processing a maliciously crafted file triggers the issue; the delivery mechanism is unspecified.
Researcher notes
The record is unusually sparse and reports only improved checks. CWE-20 supports an input-validation weakness, but root cause and attack surface are undisclosed. The CVSS confidentiality rating conflicts with the documented termination outcome and should not be treated as confirmed data exposure without further vendor evidence.
Mitigation direction
- Update iPhones and iPads to iOS or iPadOS 18.7.9 or 26.5, as applicable.
- Update Macs to Sequoia 15.7.8, Sonoma 14.8.7 or 14.8.8, or Tahoe 26.5, as applicable.
- Update Apple Vision Pro devices to visionOS 26.5.
- Review the linked Apple advisories for device-specific availability and deployment guidance.
Validation and detection
- Inventory iOS, iPadOS, macOS, and visionOS devices and record their installed versions.
- Confirm every device is running an applicable fixed release or a later vendor-supported release.
- Review Apple advisories to identify the affected component when additional details become available.
- Monitor application crash telemetry for unusual file-processing terminations while updates are deployed.
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-20: 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-2026-28936 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: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:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N3.93.6CISA-ADPVulnerability scoring details
Base CVSS 3.1 score
7.5HighVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C: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/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/127117CVE 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.
Improper Input Validation
Improper Input Validation represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.