Cyber Posture

CVE-2026-43655

High

Published: 11 May 2026

Published
11 May 2026
Modified
12 May 2026
KEV Added
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Patch
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CVSS Score 7.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
EPSS Score 0.0002 4.7th percentile
Risk Priority 15 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2026-43655 is a high-severity Out-of-bounds Read (CWE-125) vulnerability. Its CVSS base score is 7.3 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploitation for Privilege Escalation (T1068); ranked at the 4.7th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

Threat & Defense at a Glance

What attackers do: exploitation maps to Exploitation for Privilege Escalation (T1068) and 1 other technique.
Threat & Defense Details

MITRE ATT&CK Enterprise TechniquesAI

T1068 Exploitation for Privilege Escalation Privilege Escalation
Adversaries may exploit software vulnerabilities in an attempt to elevate privileges.
attack.mitre.org →
T1212 Exploitation for Credential Access Credential Access
Adversaries may exploit software vulnerabilities in an attempt to collect credentials.
attack.mitre.org →
Why these techniques?

Kernel out-of-bounds read from user-space app directly enables exploitation for privilege escalation (info leak to bypass protections) and credential access.

Confidence: MEDIUM · MITRE ATT&CK Enterprise v18.1

NVD Description

An out-of-bounds read was addressed with improved bounds checking. This issue is fixed in iOS 26.5 and iPadOS 26.5, macOS Tahoe 26.5, tvOS 26.5, watchOS 26.5. An app may be able to cause unexpected system termination or read kernel memory.

Deeper analysisAI

Automated synthesis unavailable for this CVE.

Details

CWE(s)
CWE-125

References