Security readout for executives and security teams
Plain-English summary
A memory-management flaw in multiple Apple operating systems could let an app crash the system unexpectedly. Apple fixed it across current iPhone, iPad, Mac, Apple TV, Vision Pro, and Apple Watch releases. The supplied record rates it critical, but provides no evidence of active exploitation.
Executive priority
Treat remediation as urgent because the supplied severity is critical and the flaw spans several Apple platforms. Accelerate patch compliance on business-critical fleets, while recognizing that the public description confirms system crashes but does not substantiate active exploitation or the full CVSS impact.
Technical view
CVE-2026-43822 is a use-after-free vulnerability classified as CWE-416. The stated impact is unexpected system termination caused by an app. The supplied CVSS 3.1 score is 9.8, although its network-based vector and broad confidentiality and integrity impacts are not explained by the available description.
Likely exposure
Potential exposure includes listed Apple product families running releases older than the fixed versions. The supplied affected-version entries are incomplete, so exact vulnerable ranges cannot be determined from this bundle. Inventory devices and compare installed versions with Apple's applicable security update.
Exploitation context
The bundle marks this CVE as absent from KEV and provides no cited evidence of active exploitation. This does not establish that exploitation is impossible or has never occurred. The documented outcome is denial of service through unexpected system termination; broader impact is not substantiated by the description.
Researcher notes
The record identifies a use-after-free corrected through improved memory management. Available evidence names an app-triggered system termination, but omits the affected component, vulnerable version ranges, prerequisites, and technical root cause. The supplied CVSS vector appears broader than the narrative; further vendor detail is required before asserting remote code execution or confidentiality impact.
Mitigation direction
- Update iPhones and iPads to iOS or iPadOS 18.7.10 or 26.6, as applicable.
- Update Macs to Sequoia 15.7.8, Sonoma 14.8.8, or Tahoe 26.6, as applicable.
- Update Apple TV, Vision Pro, and Apple Watch devices to version 26.6.
- Prioritize externally managed, privileged-use, and business-critical Apple devices.
- Check Apple guidance for models unable to receive the listed fixed releases.
Validation and detection
- Inventory operating-system versions across all listed Apple product families.
- Confirm each device runs its applicable fixed version or a later vendor-supported release.
- Review management-console data for devices that failed or deferred updates.
- Verify Apple security-update records associate CVE-2026-43822 with the installed release.
- Document unsupported devices and apply organization-approved isolation or replacement controls.
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-416: 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-2026-43822 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
- Critical
- CVSS
- 9.8 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/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:H/I:H/A:H3.95.9CISA-ADPVulnerability scoring details
Base CVSS 3.1 score
9.8CriticalVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/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/128066CVE reference, apple
- https://support.apple.com/en-us/128067CVE reference, apple
- https://support.apple.com/en-us/128068CVE reference, apple
- https://support.apple.com/en-us/128069CVE reference, apple
- https://support.apple.com/en-us/128070CVE reference, apple
- https://support.apple.com/en-us/128071CVE reference, apple
- https://support.apple.com/en-us/128072CVE reference, apple
- https://support.apple.com/en-us/148287CVE 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.
Use After Free
Use After Free represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.