What is the CVSS score of CVE-2026-43755?

CVE-2026-43755 has a CVSS 3.1 base score of 7.0 (High). CVSS vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.1%.

Apple CVE-2026-43755

Q: Which versions of Apple are affected by CVE-2026-43755?

CVE-2026-43755 is a local privilege escalation vulnerability in Apple macOS that allows a standard user application to gain root access via a race condition.. A patch is available.

Q: How to fix or mitigate CVE-2026-43755?

Within 24 hours, identify all macOS devices running versions prior to Sonoma 14.8.8 or Tahoe 26.6 and notify IT administrators of the patch availability. Within 7 days, deploy the vendor-released patches across all affected systems, prioritizing sensitive endpoints. Within 30 days, verify patch compliance through endpoint management tools and conduct a review of local privilege controls to ensure no lingering exposure.

EUVD-2026-49475 HIGH

Race Condition (CWE-362)

2026-07-27 apple

GHSA-52qr-8f69-pcpq

Information Disclosure Apple Race Condition

7.0

CVSS 3.1 · Vendor: apple

View

Vulnerability Assessment

Weakness

CWE

CWE-362

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.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).

Patch available 0.1% exploitation probability (EPSS)

Get an e-mail when this CVE is exploited, patched or re-scored. Free account.

Alert me

AnalysisAIv1 – Jul 27, 2026

Local privilege escalation in Apple macOS allows a low-privileged application to gain root privileges by exploiting a race condition in system state management. The issue is resolved in macOS Sonoma 14.8.8 and macOS Tahoe 26.6. No active exploitation has been reported, but the local attack vector limits remote risk.

Affected VersionsENISA

macOS 0 <26.6

macOS 0 <14.8.8

Affected Packages

euvd macos fix: 14.8.8, 26.6

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in euvd

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

Know when the next one hits your stack

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

Continue with Google Continue with GitHub

No credit card · 7-day full trial

Severity by source

Vendor (apple) PRIMARY 7.0 HIGH

AV:L/AC:H/PR:L/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

Local

Attack Complexity

High

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

Patch available

Jul 27, 2026 - 21:17 EUVD

CVE Published

Jul 27, 2026 - 20:12 cve.org

UNKNOWN (no severity yet)

CVE Published

Jul 27, 2026 - 20:12 cve.org

HIGH 7.0

DescriptionCVE.org

A race condition was addressed with improved state management. This issue is fixed in macOS Sonoma 14.8.8, macOS Tahoe 26.6. An app may be able to gain root privileges.

Executive ViewAI

Why It Matters

CVE-2026-43755 is a local privilege escalation vulnerability in Apple macOS that allows a standard user application to gain root access via a race condition. This affects all managed Mac systems running unpatched versions, particularly those with standard user environments, enabling a compromised low-privilege application to fully control the device. Leadership should prioritize patching to prevent lateral movement and data exposure from local attackers.

Recommended Action

Within 24 hours, identify all macOS devices running versions prior to Sonoma 14.8.8 or Tahoe 26.6 and notify IT administrators of the patch availability. Within 7 days, deploy the vendor-released patches across all affected systems, prioritizing sensitive endpoints. Within 30 days, verify patch compliance through endpoint management tools and conduct a review of local privilege controls to ensure no lingering exposure.

Business Impact: High

Compensating Controls

Apply vendor patch.

Threat Intelligence Overview

EPSS Score

0.1%

Top 100% exploitable

Data Quality

6 sources

Confidence: High

EUVD

NVD

CVE.org

EPSS

Vulnrichment

VulDB

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 HIGH

CISA KEV No

Public POC No

EPSS 0.1%

Patch available Yes

Active threat No

Deciding rule

HIGH severity (CVSS 7.0-8.9)

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

Scheduled

Exploitation

None

System Exposure· derived

Small

Automatable

Human Impact

High

Technical Impact

Total

Priority Score

Low Medium High Critical

KEV: 0

EPSS: 0

CVSS: +35

PoC: 0

Weaponized: 0

Threat intel: 0

Gov advisory: 0

Attack Technique

Information Disclosure MEDIUM

Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.

Race Condition MEDIUM

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).