Apple iOS/iPadOS/macOS/tvOS/visionOS/watchOS prior 26.6/15.7.8/14.8.8 buffer overflow

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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9.5$25k-$100k3.35

Summaryinfo

A vulnerability was found in Apple iOS, iPadOS, macOS, tvOS, visionOS and watchOS. It has been classified as very critical. Affected is an unknown function. Performing a manipulation results in buffer overflow. This vulnerability is known as CVE-2026-64747. Remote exploitation of the attack is possible. No exploit is available.

Detailsinfo

A vulnerability, which was classified as very critical, was found in Apple iOS, iPadOS, macOS, tvOS, visionOS and watchOS. This affects an unknown code block. The manipulation with an unknown input leads to a buffer overflow vulnerability. CWE is classifying the issue as CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

A buffer overflow was addressed with improved size validation. This issue is fixed in iOS 26.6 and iPadOS 26.6, macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.6, tvOS 26.6, visionOS 26.6, watchOS 26.6. An app may be able to execute arbitrary code with kernel privileges.

The advisory is shared at support.apple.com. This vulnerability is uniquely identified as CVE-2026-64747 since 07/20/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $25k-$100k at the moment (estimation calculated on 07/28/2026).

Upgrading to version 26.6, 15.7.8 or 14.8.8 eliminates this vulnerability.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 10.0
VulDB Meta Temp Score: 9.5

VulDB Base Score: 10.0
VulDB Temp Score: 9.5
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Buffer overflow
CWE: CWE-120 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: iOS/iPadOS/macOS/tvOS/visionOS/watchOS 26.6/15.7.8/14.8.8

Timelineinfo

07/20/2026 CVE reserved
07/27/2026 +7 days VulDB entry created
07/28/2026 +0 days Advisory disclosed
07/28/2026 +0 days VulDB entry last update

Sourcesinfo

Vendor: apple.com

Advisory: support.apple.com
Status: Confirmed

CVE: CVE-2026-64747 (🔒)
GCVE (CVE): GCVE-0-2026-64747
GCVE (VulDB): GCVE-100-383745
scip Labs: https://www.scip.ch/en/?labs.20180712

Entryinfo

Created: 07/28/2026 01:48
Changes: 07/28/2026 01:48 (54)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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