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Apple iOS/iPadOS EUVDEUVD-2026-110142

| CVE-2026-112646 MEDIUM
Out-of-bounds Write (CWE-787)
2026-10-26 apple GHSA-cfx6-p83p-596w
6.5
CVSS 3.1 · Vendor: apple
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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain

  1. Access
    Install malicious app on device
  2. Delivery
    Invoke vulnerable code path
  3. Exploit
    Trigger out-of-bounds write
  4. Execution
    Corrupt process memory
  5. Impact
    Unexpected system termination

Vulnerability Assessment

Weakness
CWE
ASVS 5.0
V15 - Secure Coding and Architecture Bounds checking, write limits
MITRE ATT&CK

2 techniques across 2 tactics: Execution, Privilege Escalation

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Exploitation Conditions

Exploitation requires a malicious or compromised app to run on the affected Apple device and reach the vulnerable code path; the description states 'An app may be able to cause unexpected system termination or corrupt process memory' but does not name the specific feature, API, or configuration that triggers the out-of-bounds write. Limiting factors: the attacker must first get an app onto the device (subject to App Store review and the iOS/iPadOS/visionOS app sandbox), and the confirmed outcome is process/system crash or memory corruption rather than demonstrated code execution or sandbox escape. The vendor CVSS claims a network vector (AV:N) with user interaction (UI:R), but the app-based description points to local execution - verify the actual reachability with Apple before treating this as remotely exploitable. Affected: iOS/iPadOS before 26.7.2 and before 27.2, and visionOS before 27.2.

Impact

This is a moderate-severity memory-safety flaw (CWE-787 out-of-bounds write) that in practice is a lower real-world priority than its 6.5 score might suggest. The signals are internally consistent on the low side: EPSS is 0.55% (46th percentile), SSVC reports Exploitation=none / Automatable=no / Technical Impact=partial, there is no CISA KEV listing and no public exploit or PoC reference in the provided data - exploitation status is therefore 'no public exploit identified at time of analysis.' The vendor-supplied CVSS vector (AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H) conflicts with the description: the description states 'An app may be able to cause unexpected system termination or corrupt process memory,' which describes a locally installed app triggering the bug, not a network-reachable attack - the AV:N rating should be treated with caution and is more realistically a local (AV:L) condition. Impact is confined to availability/memory integrity (C:N/I:N/A:H); there is no confirmed code-execution, data-disclosure, or sandbox-escape claim in the evidence. The vuln.today Decision label is 'this_month,' consistent with a patch-on-normal-cadence item rather than an emergency. Net: genuine but not urgent - schedule the update within the normal monthly cycle.

Exploit ScenarioDerived

A user installs a malicious or compromised app that invokes the vulnerable code path, triggering an out-of-bounds write that corrupts process memory and crashes the process or the system. No public exploit or PoC is identified in the provided data, and the exact triggering API or feature is not described in the available sources. Realistic impact per the evidence is denial of service / memory corruption, not confirmed code execution.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
Patch available 0.6% exploitation probability (EPSS)

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AnalysisAIv1 – Oct 28, 2026

Out-of-bounds write in Apple iOS/iPadOS before 26.7.2 and 27.2, and visionOS before 27.2, can let a malicious or compromised app corrupt process memory or cause unexpected system termination. The vendor lists CVSS 6.5 with a network/user-interaction vector, but the app-based trigger and independent assessment indicate local execution with no privileges or user interaction, and the attacker must first get an app onto the device. No public exploit was identified at time of analysis (EPSS 0.55%), and Apple has released fixed versions.

RemediationAI

Vendor-released patch: iOS 26.7.2 and iPadOS 26.7.2, iOS 27.2 and iPadOS 27.2, and visionOS 27.2. Update affected devices to the appropriate fixed release; Apple's advisories are https://support.apple.com/en-us/149227, https://support.apple.com/en-us/149230, and https://support.apple.com/en-us/149526. The provided sources do not identify a separate workaround, and the app-based precondition means exposure is limited until the update is installed.

Affected VersionsENISA

iOS and iPadOS 0 <26.7.2
visionOS 0 <27.2
iOS and iPadOS 0 <27.2

Affected Packages

euvd ios_and_ipados fix: 26.7.2, 27.2
euvd visionos fix: 27.2

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 2 packages in euvd

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

The flaw is a CWE-787 out-of-bounds write that Apple addressed with improved bounds checking. The affected code is reachable by an app on iOS/iPadOS and visionOS; CPE data identifies apple:ios_and_ipados and apple:visionos prior to the fixed releases, and EUVD lists iOS/iPadOS 0 <26.7.2 and 0 <27.2 plus visionOS 0 <27.2. The provided sources do not name the specific API, feature, or configuration that triggers the write, so the exact attack surface is not described. The description states only that an app may cause unexpected system termination or corrupt process memory; vendor CVSS uses AV:N/AC:L/PR:N/UI:R with availability impact, while the independent assessment uses AV:L/AC:L/PR:N/UI:N with partial integrity and high availability impact. SSVC records exploitation none, automatable no, and partial technical impact.

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Severity by source

Vendor (apple) PRIMARY 6.5 MEDIUM
AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
vuln.today AI 6.8 MEDIUM

Description indicates a locally installed app triggers the OOB write (AV:L, no user interaction needed once the app runs, PR:N); impact is process/system crash (A:H) with limited memory integrity (I:L) and no disclosure.

3.1 AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H
4.0 AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N

Primary rating from Vendor (apple).

CVSS VectorVendor: apple

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

Lifecycle Timeline

4
CVSS changed
Oct 27, 2026 - 01:24 NVD
6.5 (MEDIUM)
Patch available
Oct 26, 2026 - 21:03 EUVD
CVE Published
Oct 26, 2026 - 20:39 cve.org
MEDIUM 6.5
CVE Published
Oct 26, 2026 - 20:39 cve.org
UNKNOWN (no severity yet)

DescriptionCVE.org

An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 26.7.2 and iPadOS 26.7.2, iOS 27.2 and iPadOS 27.2, visionOS 27.2. An app may be able to cause unexpected system termination or corrupt process memory.

Threat Intelligence Overview

EPSS Score
0.6%
Top 54% exploitable
Prevalence
Ubiquitous
Apple iOS/iPadOS run on an enormous installed base of devices
Data Quality
5 sources
Confidence: Medium

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity MEDIUM
CISA KEV No
Public POC No
EPSS 0.6%
Patch available Yes
Active threat No
Deciding rule
MEDIUM severity (CVSS 4.0-6.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation
None
System Exposure· derived
Open
Automatable
No
Human Impact· derived
Medium
Technical Impact
Partial

Priority Score

33
Low Medium High Critical
KEV: 0
EPSS: +1
CVSS: +32
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

A buffer overflow occurs when a program writes more data to a memory buffer than it was allocated to hold, causing the excess data to spill into adjacent memory regions.

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