What is the CVSS score of EUVD-2026-78130?

EUVD-2026-78130 has a CVSS 3.1 base score of 5.2 (Medium). CVSS vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N. EPSS exploitation probability: 0.1%.

Is there a patch available for EUVD-2026-78130?

Yes, a patch is available for EUVD-2026-78130. Update the affected software to the latest version immediately.

Visionos EUVD-2026-78130

| CVE-2026-86876 MEDIUM

Out-of-bounds Write (CWE-787)

2026-09-14 apple

GHSA-9rgh-hpwq-qxmv

Buffer Overflow Memory Corruption Apple Visionos Watchos Ios And Ipados

5.2

CVSS 3.1 · Vendor: apple

View

Vulnerability Assessment

Weakness

CWE

CWE-787

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.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).

Patch available 0.1% exploitation probability (EPSS)

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AnalysisAIv1 – Sep 15, 2026

An out-of-bounds write in Apple's operating system memory handling lets a process already confined to the platform sandbox break out of those restrictions, gaining partial read and write access to data it should not reach. Affected platforms are iOS and iPadOS before 26.7/27, macOS Sequoia before 15.8, macOS Tahoe before 26.7, macOS Golden Gate before 27, visionOS before 27 and watchOS before 27. Apple has released fixes for every affected platform, and CISA's SSVC assessment records no exploitation, no automation and only partial technical impact.

Affected VersionsENISA

watchOS 0 <27

macOS 0 <26.7

visionOS 0 <27

macOS 0 <27

iOS and iPadOS 0 <27

macOS 0 <15.8

iOS and iPadOS 0 <26.7

Affected Packages

euvd ios_and_ipados fix: 26.7, 27

euvd macos fix: 15.8, 26.7, 27

euvd visionos fix: 27

euvd watchos fix: 27

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 4 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 5.2 MEDIUM

AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

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

CVSS VectorVendor: apple

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Lifecycle Timeline

CVSS changed

Sep 14, 2026 - 23:22 NVD

5.2 (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 5.2

DescriptionCVE.org

An out-of-bounds write issue was addressed with improved bounds checking. 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, watchOS 27. A sandboxed process may be able to circumvent sandbox restrictions.

Threat Intelligence Overview

EPSS Score

0.1%

Top 99% exploitable

Data Quality

5 sources

Confidence: Medium

EUVD 🇯🇵JVN

NVD

CVE.org

EPSS

Vulnrichment

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 0.1%

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

None

System Exposure· derived

Small

Automatable

Human Impact· derived

Medium

Technical Impact

Partial

Priority Score

Low Medium High Critical

KEV: 0

EPSS: 0

CVSS: +26

PoC: 0

Weaponized: 0

Threat intel: 0

Gov advisory: 0

Attack Technique

Buffer Overflow HIGH

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.

Memory Corruption HIGH

Memory corruption occurs when a program writes data beyond the boundaries of allocated memory regions or accesses memory in unintended ways, violating the integrity of the process's address space.