CVE-2026-33535

import os import subprocess # This is a simulated PoC for CVE-2026-33535 # The vulnerability triggers an out-of-bounds write in the X11 display path. # Ensure ImageMagick is vulnerable (< 7.1.2-18 or < 6.9.13-43) # Create a crafted image or command that triggers the X11 path # Note: This requires a running X server or display interaction capability. try: # Using a dummy command to illustrate the trigger mechanism # In a real scenario, a specific image file or X11 request would be used. print("Attempting to trigger ImageMagick X11 display path...") # Example command line usage that might trigger the path (hypothetical) # cmd = ['convert', 'x:image', 'output.png'] # subprocess.run(cmd, check=True) print("If vulnerable, the process may crash due to out-of-bounds write.") except Exception as e: print(f"Error: {e}")

{"cve": {"id": "CVE-2026-33535", "sourceIdentifier": "[email protected]", "published": "2026-03-26T20:16:15.723", "lastModified": "2026-04-02T17:51:22.880", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to 7.1.2-18 and 6.9.13-43, an out-of-bounds write of a zero byte exists in the X11 `display` interaction path that could lead to a crash. Versions 7.1.2-18 and 6.9.13-43 patch the issue."}, {"lang": "es", "value": "ImageMagick es un software libre y de código abierto utilizado para editar y manipular imágenes digitales. Antes de 7.1.2-18 y 6.9.13-43, existía una escritura fuera de límites de un byte cero en la ruta de interacción 'display' de X11 que podría provocar un fallo. Las versiones 7.1.2-18 y 6.9.13-43 parchean el problema."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L", "baseScore": 4.0, "baseSeverity": "MEDIUM", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "LOW"}, "exploitabilityScore": 2.5, "impactScore": 1.4}, {"source": "[email protected]", "type": "Primary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "baseScore": 5.5, "baseSeverity": "MEDIUM", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "HIGH"}, "exploitabilityScore": 1.8, "impactScore": 3.6}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-787"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:imagemagick:imagemagick:*:*:*:*:*:*:*:*", "versionEndExcluding": "6.9.13-43", "matchCriteriaId": "AE210D23-0EC1-400A-A545-0CABCB44EF78"}, {"vulnerable": true, "criteria": "cpe:2.3:a:imagemagick:imagemagick:*:*:*:*:*:*:*:*", "versionStartIncluding": "7.0.0-0", "versionEndExcluding": "7.1.2-18", "matchCriteriaId": "A761D9D6-07EA-4D5D-94AA-7ED80672FE0E"}]}]}], "references": [{"url": "https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-mw3m-pqr2-qv7c", "source": "[email protected]", "tags": ["Vendor Advisory"]}]}}