CVE-2026-64727 json
A type confusion issue was addressed with improved memory handling.
published 2026-07-27 3 mo ago modified 2026-07-29 3 mo ago also EUVD-2026-49559
- cvss
- 9.8
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.5%
- EPSS 0.5% chance of exploitation in 30 days, percentile 43%
- public exploits
- 0
- none known
Summary
A type confusion issue was addressed with improved memory handling. This issue is fixed in macOS Tahoe 26.6, tvOS 26.6. An app may be able to cause unexpected system termination.
Patch / fix
- Apple macOS 26.6
- Apple tvOS 26.6
CISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- total
- Assessed
- 3 mo ago
Exploit prediction
0.50% chance of exploitation in the next 30 days, higher than 43% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| CNA | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Affected products
- Apple macOS
- Apple tvOS
Classification
- Weakness
-
- CWE-843 Access of Resource Using Incompatible Type
References
-
support.apple.com
/en-us/128067
release-notes, vendor-advisory
-
support.apple.com
/en-us/128069
release-notes, vendor-advisory
Sources
- CVE List CVE-2026-64727
- NVD CVE-2026-64727
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.