CVE-2026-28983

#include <iostream> #include <string> // Conceptual Proof of Concept for Type Confusion DoS // This demonstrates the logic flaw that leads to a crash. class LegitimateObject { public: void performAction() { std::cout << "Processing legitimate request..." << std::endl; } }; class MaliciousHandler { public: void performAction() { // Simulate a crash (Denial of Service) via null pointer dereference std::cout << "Triggering vulnerability..." << std::endl; int* crash = nullptr; *crash = 0; // This will cause the program to crash } }; // Vulnerable function: assumes type based on external input without proper verification void handleRequest(void* objectPtr, bool isMalicious) { if (isMalicious) { // The attacker forces the system to treat the object as MaliciousHandler MaliciousHandler* handler = static_cast<MaliciousHandler*>(objectPtr); handler->performAction(); } else { LegitimateObject* obj = static_cast<LegitimateObject*>(objectPtr); obj->performAction(); } } int main() { LegitimateObject safeObj; std::cout << "Simulating normal operation:" << std::endl; handleRequest(&safeObj, false); std::cout << "\nSimulating attack (Type Confusion):" << std::endl; // Attacker passes 'true' to force the wrong cast, triggering the DoS handleRequest(&safeObj, true); return 0; }

{"cve": {"id": "CVE-2026-28983", "sourceIdentifier": "[email protected]", "published": "2026-05-11T21:18:58.423", "lastModified": "2026-05-13T14:22:10.660", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "A type confusion issue was addressed with improved checks. This issue is fixed in iOS 18.7.9 and iPadOS 18.7.9, iOS 26.5 and iPadOS 26.5, macOS Tahoe 26.5, tvOS 26.5, visionOS 26.5, watchOS 26.5. A remote attacker may be able to cause a denial of service."}], "metrics": {"cvssMetricV31": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "baseScore": 7.5, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "HIGH"}, "exploitabilityScore": 3.9, "impactScore": 3.6}]}, "weaknesses": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-843"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*", "versionEndExcluding": "18.7.9", "matchCriteriaId": "F3968B76-E6DE-416D-A0FB-E4833FFAAE0F"}, {"vulnerable": true, "criteria": "cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*", "versionStartIncluding": "26.0", "versionEndExcluding": "26.5", "matchCriteriaId": "20644D7E-2AB6-48CA-AED4-C474A9867986"}, {"vulnerable": true, "criteria": "cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*", "versionEndExcluding": "18.7.9", "matchCriteriaId": "B6431EAF-B395-4C19-9AB6-A2F45991C897"}, {"vulnerable": true, "criteria": "cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*", "versionStartIncluding": "26.0", "versionEndExcluding": "26.5", "matchCriteriaId": "1BE54A3B-D667-43BA-AB71-BCF8438054E0"}, {"vulnerable": true, "criteria": "cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*", "versionStartIncluding": "26.0", "versionEndExcluding": "26.5", "matchCriteriaId": "6CB91417-90A8-4A9B-A1D0-1D94B80EF837"}, {"vulnerable": true, "criteria": "cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:*", "versionEndExcluding": "26.5", "matchCriteriaId": "176C47FD-FA25-437B-9061-A81CAA367AEF"}, {"vulnerable": true, "criteria": "cpe:2.3:o:apple:visionos:*:*:*:*:*:*:*:*", "versionEndExcluding": "26.5", "matchCriteriaId": "C8F45D80-0DF8-444E-9AF1-703A1075F046"}, {"vulnerable": true, "criteria": "cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*", "versionEndExcluding": "26.5", "matchCriteriaId": "057B244F-5485-4108-8E23-FE15F5256EE7"}]}]}], "references": [{"url": "https://support.apple.com/en-us/127110", "source": "[email protected]", "tags": ["Release Notes", "Vendor Advisory"]}, {"url": "https://support.apple.com/en-us/127111", "source": "[email protected]", "tags": ["Release Notes", "Vendor Advisory"]}, {"url": "https://support.apple.com/en-us/127115", "source": "[email protected]", "tags": ["Release Notes", "Vendor Advisory"]}, {"url": "https://support.apple.com/en-us/127118", "source": "[email protected]", "tags": ["Release Notes", "Vendor Advisory"]}, {"url": "https://support.apple.com/en-us/127119", "source": "[email protected]", "tags": ["Release Notes", "Vendor Advisory"]}, {"url": "https://support.apple.com/en-us/127120", "source": "[email protected]", "tags": ["Release Notes", "Vendor Advisory"]}]}}