Apple iPadOS/iOS/macOS/tvOS/visionOS/watchOS up to 26 out-of-bounds write

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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4.2$5k-$25k1.35-

Summaryinfo

A vulnerability described as problematic has been identified in Apple iPadOS, iOS, macOS, tvOS, visionOS and watchOS up to 26. Affected is an unknown function. Such manipulation leads to out-of-bounds write. This vulnerability is referenced as CVE-2026-86953. The attack can only be performed from a local environment. No exploit is available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in Apple iPadOS, iOS, macOS, tvOS, visionOS and watchOS up to 26. It has been rated as problematic. Affected by this issue is an unknown code block. The manipulation with an unknown input leads to a out-of-bounds write vulnerability. Using CWE to declare the problem leads to CWE-787. The product writes data past the end, or before the beginning, of the intended buffer. Impacted is integrity, and availability. CVE summarizes:

An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 27 and iPadOS 27, macOS Golden Gate 27, tvOS 27, visionOS 27, watchOS 27. An attacker in physical proximity may be able to cause a denial-of-service.

The advisory is available at support.apple.com. This vulnerability is handled as CVE-2026-86953 since 09/08/2026. The exploitation is known to be easy. Local access is required to approach this attack. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $5k-$25k at the moment (estimation calculated on 10/20/2026).

Upgrading to version 27 eliminates this vulnerability.

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Productinfo

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Vendor

Name

Version

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.4
VulDB Meta Temp Score: 4.2

VulDB Base Score: 4.4
VulDB Temp Score: 4.2
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

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

Exploitinginfo

Class: Out-of-bounds write
CWE: CWE-787 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: No

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: iPadOS/iOS/macOS/tvOS/visionOS/watchOS 27

Timelineinfo

09/08/2026 CVE reserved
10/20/2026 +42 days Advisory disclosed
10/20/2026 +0 days VulDB entry created
10/20/2026 +0 days VulDB entry last update

Sourcesinfo

Vendor: apple.com

Advisory: support.apple.com
Status: Confirmed

CVE: CVE-2026-86953 (🔒)
GCVE (CVE): GCVE-0-2026-86953
GCVE (VulDB): GCVE-100-422630
scip Labs: https://www.scip.ch/en/?labs.20180712

Entryinfo

Created: 10/20/2026 03:49
Changes: 10/20/2026 03:49 (55)
Complete: 🔍
Cache ID: 216::103

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