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CVE-2026-43722

Published: Jun 29, 2026Updated: Jun 30, 2026 Sources: CVE List NVDCWE-20
5.5MEDIUM
NVD MITRE
EPSS Score
0.2%
Top 90.8%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
Not available

Description

The issue was addressed with improved input sanitization. This issue is fixed in iOS 26.5.2 and iPadOS 26.5.2, macOS Tahoe 26.5.2. An app may be able to leak sensitive kernel state.

In plain language

AI Low urgency

This is an iPhone/iPad/Mac software bug where an app could potentially leak sensitive internal system information; most small businesses should update, but there’s no known public exploit right now.

Executive summary

In iOS/macOS, improved input sanitization fixes a vulnerability that could let an app leak sensitive kernel state via malformed or unsafe inputs (specific trigger and exposure path are not yet known).

If affected, business impact
Sensitive system information exposurePotential account or data riskSecurity incident investigation time

What to do now

  1. Check which devices you run (iPhone, iPad, and Macs) and their current OS versions.
  2. Update iOS to 26.5.2 or later.
  3. Update iPadOS to 26.5.2 or later.
  4. Update macOS Tahoe to 26.5.2 or later.
  5. After updating, verify the update completed successfully and you’re on the target version.
Usually a quick update

CVSS Vector Breakdown

AV:LAC:LPR:LUI:NS:UC:HI:NA:N
Exploitability
AV:LAttack Vector
Local
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:NIntegrity
None
A:NAvailability
None
Open in CVSS calculator →

Weaknesses

CWE-20

Affected Products

Apple
commercial·USaka apple inc., apple computer
ipadosEmbeddedOS
Operating Systems / mobile-os
iOS and iPadOSEmbeddedOS
Operating Systems / mobile-os
macOSOn-premOS
Operating Systems / unix-bsd
and 2 more affected products View all →

Exploitability

Official Patch Available

Attack Graph

Products CVE Techniques Tactics

Click technique nodes for MITRE ATT&CK details · drag to pan · Ctrl/⌘ + scroll to zoom, or go fullscreen.

MITRE ATT&CK

1 technique
Initial Access
View detailed technique mapping

References

https://support.apple.com/en-us/127594
support.apple.com
https://support.apple.com/en-us/127595
support.apple.com
News mentions
2

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