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Race condition in Apple IOGPUFamily leading to system termination

IdentifiersCVE-2026-43743CWE-362

CVE-2026-43743 is a race condition in Apple IOGPUFamily. Apple states the issue was addressed through improved state handling and that exploitation may allow an app to cause unexpected system termination. The vulnerability affects Apple platforms including iOS 26.5.2, iPadOS 26.5.2, and macOS Tahoe 26.5.2 prior to the fixes shipped in those releases. Based on the available advisory text, the flaw is in state handling within the IOGPUFamily component and can be triggered by an app, resulting in a crash-level denial of service rather than code execution.

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ANALYST BRIEF

Impact, mitigation & remediation

What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.

Impact

What an attacker gets, and what they’ve been doing with it.

Successful exploitation can cause unexpected system termination. The practical impact is denial of service at the device level, with the vulnerable system crashing or terminating unexpectedly when the race condition is triggered by an app.

Mitigation

If you can’t patch tonight, do this now.

If immediate patching is not possible, reduce exposure by limiting installation and execution of untrusted or low-trust applications, since the issue requires an app to trigger the vulnerable condition. Standard application control, least-privilege policies, and restricting third-party app execution may reduce risk, but no vendor-provided mitigation short of updating is available in the provided content.

Remediation

Patch, then assume compromise.

Apply Apple's security updates that fix the issue: upgrade to iOS 26.5.2, iPadOS 26.5.2, and macOS Tahoe 26.5.2 or later. Apple indicates the fix consists of improved state handling in the affected IOGPUFamily component.
PUBLIC EXPLOITS

Exploits

No public exploits tracked yet. Mallory keeps watching.

VALID 0 / 0 TOTALView more in app

No public exploit code observed for this vulnerability.

EXPOSURE SURFACE

Affected products & vendors

Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.

VendorProductType
AppleIosoperating_system
AppleIpadosoperating_system
AppleMacos Tahoeoperating_system

Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.

ACTIVITY FEED

Recent activity

5 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.

5 SOURCESView more in app
What this page doesn’t show

The version that knows your environment.

This page is what’s public. Mallory adds the parts that aren’t: which of your assets are affected, which adversaries are exploiting it right now, which detections to deploy, and what to do tonight.
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Exposure mapping

Query your assets running an affected version, and investigate the blast radius.

Threat actor evidence

Every observed campaign linking this CVE to a named adversary.

Associated malware

Malware families riding this exploit, with evidence and IOCs.

Detection signatures

YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.

Vendor-by-vendor mapping

Cross-references every affected SKU, including bundled OEM variants.

Social activity2

Community discussion across Reddit, Mastodon, and other social sources.

EXTERNAL REFERENCES
MITRE CVE
cve.org · CVE-2026-43743
NVD
nvd.nist.gov/vuln/detail/CVE-2026-43743
MITRE CWE · CWE-362
cwe.mitre.org