Security readout for executives and security teams
Plain-English summary
A remotely reachable memory-safety flaw affects multiple Apple operating systems. An attacker may cause applications to crash or corrupt heap memory without credentials or user interaction. Apple addressed the flaw through stronger input validation in specified operating-system updates.
Executive priority
Treat remediation as urgent because the flaw is remotely reachable, requires no credentials or user interaction, and carries a 9.8 score. Prioritize broadly deployed and sensitive Apple devices, while recognizing that the supplied sources do not report active exploitation or confirm code execution.
Technical view
CVE-2026-64772 is a CWE-787 out-of-bounds write. Its CVSS 3.1 score is 9.8 with network access, low complexity, no privileges, and no user interaction. Public details identify possible unexpected application termination or heap corruption, but do not identify the vulnerable component, input format, or a demonstrated code-execution outcome.
Likely exposure
Potential exposure includes iOS, iPadOS, macOS, tvOS, and visionOS devices that have not received the named fixed releases. The supplied evidence does not define exact vulnerable version ranges, affected components, or device models, so organizations should compare every deployed version with Apple’s applicable advisory.
Exploitation context
The source bundle provides no evidence of active exploitation, and the CVE is not identified as being in KEV. That absence does not prove exploitation has never occurred. No public exploit, attack campaign, or exploitation prerequisite beyond the CVSS vector is established by the supplied sources.
Researcher notes
The record establishes an out-of-bounds write corrected by improved input validation. It does not disclose the affected subsystem, trigger, memory layout, root cause, or exploitability constraints. Heap corruption indicates serious memory-safety impact, but stronger claims such as reliable code execution would exceed the available evidence.
Mitigation direction
- Update iPhones and iPads to iOS/iPadOS 18.7.10 or 26.6, as applicable.
- Update Macs to macOS Sequoia 15.7.8 or macOS Tahoe 26.6, as applicable.
- Update Apple TV devices to tvOS 26.6.
- Update Apple Vision Pro devices to visionOS 26.6.
- Review Apple advisories for model eligibility, deployment constraints, and any newer superseding release.
Validation and detection
- Inventory deployed iOS, iPadOS, macOS, tvOS, and visionOS versions.
- Verify devices report the applicable fixed version or a newer vendor release.
- Confirm update compliance through device-management records and investigate stale or unreachable devices.
- Review Apple advisories to resolve uncertain product and version applicability.
- Monitor endpoint and application telemetry for unusual crashes; crashes alone do not confirm exploitation.
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-2026-64772 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/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.