Security readout for executives and security teams
Plain-English summary
Apple fixed a memory-safety flaw affecting multiple operating systems. An attacker close to a device may be able to corrupt a running process’s memory, potentially affecting confidentiality, integrity, or availability. The supplied sources do not establish active exploitation.
Executive priority
Treat remediation as urgent because the supplied rating is critical and potential impact is broad. Accelerate updates for physically accessible devices, while validating applicability because the attack-vector data conflicts and affected-version boundaries are incomplete.
Technical view
CVE-2026-64726 is classified as CWE-119 and involves unsafe memory handling. Apple addressed it through improved memory handling in iOS/iPadOS, macOS Tahoe, tvOS, visionOS, and watchOS 26.6. The supplied CVSS vector indicates network access, but Apple’s description requires physical proximity; this inconsistency needs authoritative clarification.
Likely exposure
Devices running releases earlier than the named 26.6 fixes may be exposed, but the bundle does not provide reliable lower version boundaries. Practical risk appears greatest where untrusted people can approach devices. Inventory and vendor confirmation are required.
Exploitation context
The stated attack condition is physical proximity. No KEV listing or cited evidence of active exploitation is provided. Public details in the bundle do not explain the triggering interface, required proximity, affected component, or demonstrated impact beyond possible process-memory corruption.
Researcher notes
The record combines CVSS 9.8 with AV:N and an Apple description requiring physical proximity. Do not infer remote exploitation from the vector alone. The bundle identifies CWE-119 and process-memory corruption but provides no component, root-cause detail, proof of exploitation, or precise vulnerable-version range.
Mitigation direction
- Update affected Apple operating systems to version 26.6 or a later vendor-supported release.
- Prioritize devices accessible to the public, visitors, contractors, or other untrusted people.
- Restrict physical access to unpatched devices until updates are completed.
- Review Apple advisories for revised applicability, prerequisites, or additional mitigations.
Validation and detection
- Inventory iOS, iPadOS, macOS, tvOS, visionOS, and watchOS device versions.
- Confirm each in-scope device reports version 26.6 or later after updating.
- Identify unpatched devices located in publicly or operationally accessible areas.
- Recheck Apple and CVE records for clarified attack-vector and affected-version details.
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-119: 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-2026-64726 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
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 Restriction of Operations within the Bounds of a Memory Buffer
Improper Restriction of Operations within the Bounds of a Memory Buffer represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.