CVE-2026-43743

MEDIUM 4.7 ALL-YEARS

Published 2026-06-29 · Last modified 2026-09-14 · apple · NVD: Modified

A race condition was addressed with improved state handling. This issue is fixed in iOS 26.5.2 and iPadOS 26.5.2, iOS 26.7 and iPadOS 26.7, macOS Tahoe 26.5.2, macOS Tahoe 26.7, tvOS 26.6, watchOS 26.6. An app may be able to cause unexpected system termination.

LIMITED SIGNALS

No known exploitation, public exploit, or elevated probability at this time. Track for changes.

Exploitation likelihood

0.1%chance of exploitation in 30 days · 1st percentile

○ In CISA KEV○ Catalogued PoC◆ SSVC: exploitation none, automatable no

Impact if exploited

4.7CVSS 3.1 · MEDIUM · ADP

ConfidentialityNone
IntegrityNone
AvailabilityHigh

What an attacker needs

⚠Access: Requires local access to the host
⚠Privileges: Requires a low-privilege account
✓User interaction: No user interaction needed
⚠Complexity: Needs a race window or specific setup

✓ lowers the bar for an attacker · ⚠ raises it

Proof of concept

No public PoC is currently catalogued.

Search for new PoCs

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Tracked sources are checked weekly for the full archive, including PoCs published after the original disclosure. A later release appears after a tracked source lists it and a refresh succeeds.

Affected

Vendors Apple

Products Ios And Ipados Macos Tvos Watchos Ipados Iphone Os

Weakness (CWE)

CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

CVSS vector

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

References and research data (JSON)

Known Affected Software Configurations

Vendor	Product	Version range
Apple	Ipados	< 26.5.2
Apple	Iphone Os	< 26.5.2
Apple	Macos	≥ 26.0 and < 26.5.2

All CVSS metrics

MEDIUM 4.7 v3.1 · ADP Primary
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
MEDIUM 4.7 v3.1 · NVD Secondary
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

References

Advisories

https://support.apple.com/en-us/127594 Vendor AdvisoryCVE record · apple · Updated 2026-09-14T20:48:06.497Z
NVD · CVE-2026-43743 · Updated 2026-09-14T21:17:09.950
https://support.apple.com/en-us/127595 Vendor AdvisoryCVE record · apple · Updated 2026-09-14T20:48:06.497Z
NVD · CVE-2026-43743 · Updated 2026-09-14T21:17:09.950
https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-40191 ADVISORYEUVD · EUVD-2026-40191

Technical & other

https://support.apple.com/en-us/128068CVE record · apple · Updated 2026-09-14T20:48:06.497Z
NVD · CVE-2026-43743 · Updated 2026-09-14T21:17:09.950
https://support.apple.com/en-us/128069CVE record · apple · Updated 2026-09-14T20:48:06.497Z
NVD · CVE-2026-43743 · Updated 2026-09-14T21:17:09.950
https://support.apple.com/en-us/149041CVE record · apple · Updated 2026-09-14T20:48:06.497Z
NVD · CVE-2026-43743 · Updated 2026-09-14T21:17:09.950
https://support.apple.com/en-us/149042CVE record · apple · Updated 2026-09-14T20:48:06.497Z
NVD · CVE-2026-43743 · Updated 2026-09-14T21:17:09.950

Sources: NVD · CVE.org · All sources and attribution · EPSS