CVE-2026-34618

# Proof of Concept (Conceptual) # This script creates a malformed file structure potentially triggering the OOB write. # Note: This is a simulation based on the vulnerability description. import struct def create_malicious_file(filename): with open(filename, 'wb') as f: # Write a fake header (Illustrator file format specific) f.write(b'%!PS-Adobe-3.0\n') # Simulate a block that claims a large size but has insufficient buffer allocation check # This is hypothetical logic representing the trigger malicious_chunk = b'A' * 100 # Padding overflow_payload = b'\x' * 50 # Payload attempting to write past bounds f.write(malicious_chunk) f.write(overflow_payload) print(f"[+] Generated {filename}") if __name__ == "__main__": create_malicious_file("exploit_test.ai")

{"cve": {"id": "CVE-2026-34618", "sourceIdentifier": "[email protected]", "published": "2026-04-14T20:16:47.523", "lastModified": "2026-04-15T19:34:05.737", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "Illustrator versions 30.2, 29.8.5 and earlier are affected by an out-of-bounds write vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Primary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "baseScore": 7.8, "baseSeverity": "HIGH", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 1.8, "impactScore": 5.9}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-787"}]}], "configurations": [{"operator": "AND", "nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:adobe:illustrator:*:*:*:*:*:*:*:*", "versionStartIncluding": "29.0", "versionEndExcluding": "29.8.6", "matchCriteriaId": "A18B3059-60FA-4378-9E4A-6B20DCA2B010"}, {"vulnerable": true, "criteria": "cpe:2.3:a:adobe:illustrator:*:*:*:*:*:*:*:*", "versionStartIncluding": "30.0", "versionEndExcluding": "30.3", "matchCriteriaId": "7F6466C6-704F-4D25-A8DF-1415F012ED09"}]}, {"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": false, "criteria": "cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:*", "matchCriteriaId": "387021A0-AF36-463C-A605-32EA7DAC172E"}, {"vulnerable": false, "criteria": "cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*", "matchCriteriaId": "A2572D17-1DE6-457B-99CC-64AFD54487EA"}]}]}], "references": [{"url": "https://helpx.adobe.com/security/products/illustrator/apsb26-42.html", "source": "[email protected]", "tags": ["Vendor Advisory"]}]}}