Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain
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AccessGain physical proximity to target device
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DeliverySend crafted proximity-based input
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ExploitTrigger out-of-bounds write (CWE-787)
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ExecutionCorrupt memory and crash service
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ImpactDenial-of-service on device
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 the attacker to be in physical proximity to the target device (CVSS AV:P), consistent with Apple's statement that 'an attacker in physical proximity may be able to cause a denial-of-service.' No authentication is required (PR:N) and no user interaction is needed (UI:N), but the physical-proximity constraint is the dominant limiting factor - this cannot be exploited remotely over a network, which sharply reduces realistic attack surface. Impact is limited to denial-of-service (A:H only); there is no code execution, data disclosure, or integrity loss. Mitigation is straightforward: updating to the fixed OS versions (all v27) removes the flaw, and the affected version range is everything prior to 27. |
| Impact | This is a genuinely low-priority issue despite the CRITICAL-sounding CWE-787 (out-of-bounds write) classification. The CVSS 3.1 base score of 4.6 (MEDIUM) is driven down by the Physical attack vector (AV:P) - the attacker must be in physical proximity to the target device - and the impact is limited strictly to availability (C:N/I:N/A:H), meaning a denial-of-service only, with no confidentiality or integrity loss. All exploitation signals point the same way and are consistent: CISA SSVC reports Exploitation: none, Automatable: no, and Technical Impact: partial, which aligns with a DoS-only outcome. There is no CISA KEV listing, no public POC, and no EPSS score was provided in the input, so there is no evidence of active or likely near-term exploitation. The signals do not conflict: a physical-proximity DoS on a patched Apple OS is not a widespread remote threat. The primary risk driver here is the enormous install base of Apple's operating systems rather than the severity or exploitability of the flaw itself. |
| Exploit ScenarioDerived | An attacker within physical radio/proximity range of a victim's iPhone, iPad, Mac, Apple TV, Apple Watch, or Vision Pro sends crafted data that triggers an out-of-bounds write, corrupting memory and crashing the affected service or device (denial-of-service). No public exploit code has been identified, and the physical-proximity requirement means the attacker must be physically near the target rather than operating remotely over the internet. |
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Alert meAnalysisAIv1 – Oct 20, 2026
Denial-of-service in Apple operating systems prior to version 27 can be triggered by an attacker in physical proximity through an out-of-bounds write that corrupts memory. The flaw affects iOS and iPadOS, macOS Golden Gate, tvOS, visionOS, and watchOS, with impact limited to availability (CVSS 4.6, AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H); no code execution, data disclosure, or integrity loss is assessed. No public exploit was identified at time of analysis, and CISA SSVC rates exploitation as none and automatable as no.
RemediationAI
Vendor-released patch: update to iOS 27 and iPadOS 27, macOS Golden Gate 27, tvOS 27, visionOS 27, and watchOS 27, as documented in Apple advisories https://support.apple.com/en-us/149034 through https://support.apple.com/en-us/149038. Because exploitation requires physical proximity, devices that cannot be updated immediately should be kept under controlled physical access and away from untrusted areas, accepting the trade-off of reduced usability and convenience. No feature-disable or network-blocking workaround is identified in the supplied data, so the patched OS versions are the primary and most reliable mitigation.
Affected VersionsENISA
Affected Packages
Source: OSV (Open Source Vulnerabilities)
Affects your stack
Affects 5 packages in euvd
Checking this CVE against your own stacks and servers is part of the Basic plan and up.
Technical ContextAI · show details
CWE-787 describes a write past the bounds of an allocated memory buffer, which Apple addressed with improved bounds checking. In this case the CVSS vector requires physical proximity (AV:P) but no privileges (PR:N) and no user interaction (UI:N), so the dominant constraint is attacker access to the device's vicinity rather than remote reachability. The supplied advisories do not identify the specific subsystem or protocol, so the proximity vector should not be assumed to involve any particular radio or interface. Although out-of-bounds writes can sometimes enable code execution, the assessed impact here is availability-only (A:H) with no confidentiality or integrity impact. The CPE families cover iOS and iPadOS, macOS, tvOS, visionOS, and watchOS, and EUVD lists all versions before 27 as affected.
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Severity by source
AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Physical proximity attack (AV:P) with no auth or interaction (PR:N/UI:N); out-of-bounds write causes a crash only, so A:H with C:N/I:N.
Primary rating from Vendor (apple).
CVSS VectorVendor: apple
Lifecycle Timeline
4DescriptionCVE.org
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.
Threat Intelligence Overview
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.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
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EUVD-2026-104730
GHSA-3hf6-q2c8-cwvf
NVD
CVE.org
EPSS
Vulnrichment
Exploit-DB