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Visionos CVE-2026-84534

| EUVDEUVD-2026-78126 MEDIUM
Path Traversal (CWE-22)
2026-09-14 apple GHSA-vjcf-qh5g-4qrj
5.5
CVSS 3.1 · Vendor: apple
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Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V5 - File Handling Path canonicalization, traversal prevention
MITRE ATT&CK

2 techniques across 2 tactics: Discovery, Collection

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

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
Patch available 0.2% exploitation probability (EPSS)

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AnalysisAIv1 – Sep 15, 2026

Archive extraction on Apple platforms fails to properly validate path components, letting a maliciously crafted archive write files outside the intended destination directory. Affected systems include iOS and iPadOS before 26.7 (and before 27), macOS Sequoia before 15.8, macOS Tahoe before 26.7, macOS Golden Gate before 27, and visionOS before 27, with the flaw rated CVSS 5.5 (integrity-only, local vector with required user interaction). Apple has released patched versions for every affected platform; there is no CISA KEV listing and no public exploit code identified, and EPSS is only 0.18% (7th percentile), indicating low predicted exploitation activity.

Affected VersionsENISA

macOS 0 <26.7
iOS and iPadOS 0 <27
macOS 0 <15.8
visionOS 0 <27
iOS and iPadOS 0 <26.7
macOS 0 <27

Affected Packages

euvd ios_and_ipados fix: 26.7, 27
euvd macos fix: 15.8, 26.7, 27
euvd visionos fix: 27

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 3 packages in euvd

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

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  • Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

Vendor (apple) PRIMARY 5.5 MEDIUM
AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

Primary rating from Vendor (apple) · only source for this CVE.

CVSS VectorVendor: apple

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

Lifecycle Timeline

4
CVSS changed
Sep 15, 2026 - 20:37 NVD
5.5 (MEDIUM)
Patch available
Sep 14, 2026 - 22:19 EUVD
CVE Published
Sep 14, 2026 - 20:51 cve.org
UNKNOWN (no severity yet)
CVE Published
Sep 14, 2026 - 20:51 cve.org
MEDIUM 5.5

DescriptionCVE.org

A path handling issue was addressed with improved validation. This issue is fixed in iOS 26.7 and iPadOS 26.7, iOS 27 and iPadOS 27, macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7, visionOS 27. Extracting a maliciously crafted archive may allow an attacker to write arbitrary files.

Threat Intelligence Overview

EPSS Score
0.2%
Top 93% exploitable
Data Quality
4 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 0.2%
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
Defer
Exploitation· derived
None
System Exposure· derived
Small
Automatable· derived
No
Human Impact· derived
Medium

Priority Score

28
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +28
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Path traversal exploits occur when applications use user-controlled input to construct file system paths without proper validation.

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