Security readout for executives and security teams
Plain-English summary
A memory-safety flaw in multiple Apple operating systems could let a remote attacker crash an application or corrupt heap memory. Heap corruption can potentially enable more serious compromise, consistent with the supplied critical rating, although the public bundle does not confirm code execution or successful exploitation.
Executive priority
Treat remediation as urgent across the Apple fleet because the flaw is remotely reachable and carries a supplied 9.8 score. Accelerate updates where operationally safe, track exceptions, and avoid implying confirmed attacks: the provided evidence does not show active exploitation.
Technical view
CVE-2026-64769 is a CWE-787 out-of-bounds write addressed through improved bounds checking. The supplied CVSS 3.1 score is 9.8, describing a network-reachable, low-complexity attack requiring neither privileges nor user interaction. Apple identifies unexpected application termination and heap corruption as possible outcomes but does not identify the affected component.
Likely exposure
Apple devices running releases earlier than the listed fixed versions may be exposed. The bundle covers iOS, iPadOS, macOS, tvOS, and visionOS, but provides placeholder affected-version data and no precise vulnerable-version ranges. Inventory and version verification are therefore essential.
Exploitation context
The supplied record is not in KEV, and no cited source in the bundle reports active exploitation. A remote attacker may trigger termination or heap corruption. Public evidence supplied here does not establish exploit availability, observed attacks, or whether heap corruption reliably leads to code execution.
Researcher notes
The record lacks the vulnerable component, triggering input, exact affected ranges, and technical exploitability details. The stated impact is limited to possible termination or heap corruption; confidentiality and integrity impacts come from the supplied CVSS vector rather than a demonstrated exploit. Further assessment should follow vendor disclosures without attempting production exploitation.
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 devices to tvOS 26.6.
- Update Apple Vision Pro devices to visionOS 26.6.
- Review Apple guidance for unsupported devices or releases not clearly covered by the listed fixes.
Validation and detection
- Inventory iOS, iPadOS, macOS, tvOS, and visionOS versions across managed assets.
- Confirm each device reports a listed fixed release or a later vendor-approved release.
- Verify update-management systems show successful installation, not merely update assignment.
- Review application crash telemetry for unexplained terminations associated with affected, unpatched devices.
- Recheck Apple advisories for clarified affected ranges, component details, or revised remediation.
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-787: 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-2026-64769 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/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.
Out-of-bounds Write
Out-of-bounds Write represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.