Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain
-
AccessLocal user runs malicious app
-
DeliveryConcurrently invoke vulnerable kernel path
-
ExploitWin narrow race window
-
ExecutionKernel returns stale/leaked memory
-
ImpactRead kernel memory or panic device
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A06:2025 - Insecure Design
ASVS 5.0
V15 - Secure Coding and Architecture Concurrency control, locking
MITRE ATT&CK
1 technique across 1 tactic: Privilege Escalation The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. |
| Exploitation Conditions | The attacker must be a local user able to execute code or run an application on the target device; the CVSS vector's UI:R implies the user must also interact (for example opening an attacker-supplied app), and the description's 'local user' wording confirms this is not a remote pre-auth vector despite the AV:N in the supplied score. Successful exploitation additionally requires winning a narrow concurrent-execution race window, which is non-deterministic and often crashes the target first. Relevant limits: no unauthenticated/remote path is described, kernel memory readability and system termination are the only demonstrated impacts (no code execution or persistence claimed), the device may visibly panic, and no public exploit code exists at time of analysis. |
| Impact | Signals conflict and should be treated carefully. NVD's CVSS 3.1 vector is AV:N/AC:L/PR:N/UI:R (8.1), which describes a remote, low-complexity, unauthenticated attack requiring user interaction - yet the vendor description explicitly states 'a local user may be able to cause unexpected system termination or read kernel memory', implying AV:L/AC:H/PR:L. That mismatch is unresolved in the supplied data and should be verified against Apple's advisory before treating this as a remotely reachable flaw. EPSS is very low (0.16%, 6th percentile) and CISA SSVC records Exploitation: none, Automatable: no, Technical Impact: partial, with no KEV listing and no public exploit code - so despite the elevated base score, this reads as a low-priority hardening item rather than an imminent threat. Realistically it is a kernel memory-disclosure/DoS primitive useful inside a chained local exploit, not a standalone mass-exploitation vector. The absence of POC and KEV data is itself a limiting factor on the accuracy of this assessment. |
| Exploit ScenarioDerived | An attacker who already has code execution on the device - for example a malicious app installed by a user, or a post-compromise payload - repeatedly drives the vulnerable kernel code path concurrently to win the race window, either leaking kernel memory to defeat kernel ASLR or crashing the device. Because the race is timing-dependent, exploitation is unreliable and typically embedded as one primitive in a larger local privilege-escalation or sandbox-escape chain rather than used on its own. No public exploit code has been identified. |
Get an e-mail when this CVE is exploited, patched or re-scored. Free account.
Alert meAnalysisAIv1 – Sep 15, 2026
Race condition in Apple's kernel allows a local user on iOS 27, iPadOS 27, macOS Golden Gate 27, tvOS 27, visionOS 27 and watchOS 27 to cause unexpected system termination or read kernel memory. Apple fixed the flaw with additional validation, publishing advisories 149034-149038; there is no public exploit code and no confirmed active exploitation (EPSS 0.16%, SSVC exploitation: none).
RemediationAI
Upgrade every affected device to the version 27 release train: iOS 27 and iPadOS 27, macOS Golden Gate 27, tvOS 27, visionOS 27 and watchOS 27, per Apple advisories https://support.apple.com/en-us/149034 through https://support.apple.com/en-us/149038. There is no vendor-issued configuration workaround for a kernel race condition; compensating controls are limited to reducing the local attack surface - enforce MDM policy that blocks sideloaded/unauthorized applications and untrusted developer profiles (trade-off: operational friction for developers and enterprise side-loading workflows), keep devices on managed, rapidly-updatable fleets so the fix window is short, and monitor for unexpected kernel panics or device reboots, which may indicate exploitation attempts (trade-off: noisy telemetry with high false-positive rates from ordinary hardware faults).
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
The defect is CWE-362 (Concurrent Execution using Shared Resource with Improper Synchronization) inside the shared Apple kernel (XNU) code base that underpins iOS/iPadOS, macOS, tvOS, visionOS and watchOS. A shared kernel resource is touched without adequate locking, so a timing window exists in which a local process can observe or consume memory in an inconsistent state, leaking kernel memory or triggering a panic. CPE data (cpe:2.3:a:apple:ios_and_ipados, macos, tvos, visionos, watchos) confirms all five operating-system families before version 27 are in scope, consistent with a single shared kernel subsystem being fixed across the 27-generation releases.
Know when Tvos gets its next vulnerability
- Watch products and get an email when something new is published
- Check this CVE against your own stack and servers
- Exploit and PoC references, threat intelligence from 22 sources
No credit card · 7-day full trial
Severity by source
AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H
Vendor text says local user and CWE-362 race, so AV:L, AC:H, PR:L; kernel memory read and panics give C:H/A:H with no integrity impact.
Primary rating from Vendor (apple).
CVSS VectorVendor: apple
Lifecycle Timeline
4DescriptionCVE.org
A race condition was addressed with additional validation. This issue is fixed in iOS 27 and iPadOS 27, macOS Golden Gate 27, tvOS 27, visionOS 27, watchOS 27. A local user may be able to cause unexpected system termination or read kernel memory.
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
Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.
Race conditions occur when multiple concurrent requests exploit the brief time gap between checking a condition and acting upon it (TOCTOU - Time of Check, Time of Use).
Heap buffer overflow in WebRTC in Google Chrome prior to 103.0.5060.114 allowed a remote attacker to potentially exploit
An issue was discovered in certain Apple products. Rated high severity (CVSS 7.8), this vulnerability is no authenticati
The Broadcom Wi-Fi driver in the kernel in Android 4.x before 4.4.4, 5.x before 5.1.1 LMY49G, and 6.x before 2016-02-01
WebKit memory corruption in Safari 18.6 and multiple Apple platforms allows remote code execution when processing malici
WebKit in Apple iOS before 9.3.3, Safari before 9.1.2, and tvOS before 9.2.2 allows remote attackers to execute arbitrar
An issue was discovered in certain Apple products. Rated high severity (CVSS 7.8), this vulnerability is low attack comp
Apple kernel lock state checking flaw allows a malicious application to cause unexpected changes in memory shared betwee
An issue was discovered in certain Apple products. Rated high severity (CVSS 7.8), this vulnerability is no authenticati
Apple kernel memory corruption in multiple operating systems allows a malicious application to cause unexpected system t
Out-of-bounds write (CWE-787) in QtWebEngine before 6.10.1-r2 on Alpine Linux, and in other Chromium-based engines such
WebKit arbitrary code execution via use-after-free memory corruption affects Safari 26.2, iOS/iPadOS 18.7.3 through 26.2
On Broadcom BCM4355C0 Wi-Fi chips 9.44.78.27.0.1.56 and other chips, an attacker can craft a malformed RRM neighbor repo
EUVD-2026-77920
GHSA-qppm-p2jq-6crj
NVD
CVE.org
EPSS
Vulnrichment
Exploit-DB