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Tvos CVE-2026-64726

| EUVDEUVD-2026-49556 CRITICAL
Buffer Overflow (CWE-119)
2026-07-27 apple GHSA-2mph-r28x-7hfp
9.8
CVSS 3.1 · Vendor: apple
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Vulnerability Assessment

Weakness
CWE
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.

Act Now Prioritize within 24-48h. Why: CRITICAL severity.
Patch available 0.2% exploitation probability (EPSS)

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AnalysisAIv1 – Jul 28, 2026

Physical-proximity memory corruption in multiple Apple operating systems (iOS, iPadOS, macOS, tvOS, watchOS, visionOS) allows a nearby attacker to corrupt process memory, potentially leading to arbitrary code execution or denial of service. No active exploitation is known, and vendor-released patches are available. EPSS score is low (0.16%), and the CVSS vector supplied (AV:N) conflicts with the required physical proximity.

Affected VersionsENISA

macOS 0 <26.6
watchOS 0 <26.6
tvOS 0 <26.6
iOS and iPadOS 0 <26.6
visionOS 0 <26.6

Affected Packages

euvd ios_and_ipados fix: 26.6
euvd macos fix: 26.6
euvd tvos fix: 26.6
euvd visionos fix: 26.6
euvd watchos fix: 26.6

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.

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  • Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

Vendor (apple) PRIMARY 9.8 CRITICAL
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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

CVSS VectorVendor: apple

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

Lifecycle Timeline

3
Patch available
Jul 27, 2026 - 21:17 EUVD
CVE Published
Jul 27, 2026 - 20:13 cve.org
UNKNOWN (no severity yet)
CVE Published
Jul 27, 2026 - 20:13 cve.org
CRITICAL 9.8

DescriptionCVE.org

The issue was addressed with improved memory handling. This issue is fixed in iOS 26.6 and iPadOS 26.6, macOS Tahoe 26.6, tvOS 26.6, visionOS 26.6, watchOS 26.6. An attacker in physical proximity may be able to corrupt process memory.

Threat Intelligence Overview

EPSS Score
0.2%
Top 94% exploitable
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 CRITICAL
CISA KEV No
Public POC No
EPSS 0.2%
Patch available Yes
Active threat No
Deciding rule
CRITICAL severity
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
Yes
Human Impact· derived
Medium
Technical Impact
Total

Priority Score

49
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +49
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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