CVE-2026-40638

#!/usr/bin/env python3 # PoC for CVE-2026-40638: Privilege Escalation in Dell PowerScale InsightIQ # This script checks for the presence of the vulnerable binary and attempts to demonstrate the permission issue. import os import subprocess VULNERABLE_PATH = "/opt/insightiq/bin/vulnerable_component" def check_vulnerability(): if not os.path.exists(VULNERABLE_PATH): print(f"[-] Target binary not found at {VULNERABLE_PATH}") return # Check permissions (e.g., SUID or excessive capabilities) stat_info = os.stat(VULNERABLE_PATH) mode = oct(stat_info.st_mode) print(f"[*] Found binary with permissions: {mode}") # Hypothetical exploitation logic # If the binary runs with higher privileges than necessary, # an attacker with local high privileges (PR:H) could trigger it. try: # Simulating a call that would exploit the unnecessary privilege result = subprocess.run([VULNERABLE_PATH, "--trigger"], capture_output=True, text=True) if "root" in result.stdout or result.returncode == 0: print("[!] Potential privilege escalation detected.") else: print("[-] Exploit attempt failed or patched.") except Exception as e: print(f"Error: {e}") if __name__ == "__main__": check_vulnerability()

{"cve": {"id": "CVE-2026-40638", "sourceIdentifier": "[email protected]", "published": "2026-05-12T14:17:04.270", "lastModified": "2026-05-12T19:49:19.097", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "Dell PowerScale InsightIQ, versions 5.0.0 through 6.2.0, contains an execution with unnecessary privileges vulnerability. A high privileged attacker with local access could potentially exploit this vulnerability, leading to elevation of privileges."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H", "baseScore": 6.7, "baseSeverity": "MEDIUM", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "HIGH", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 0.8, "impactScore": 5.9}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-250"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:dell:insightiq:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.0.0", "versionEndExcluding": "6.3.0", "matchCriteriaId": "7CD9A421-ECBB-4707-BE53-7BEE9ECF6D34"}]}]}], "references": [{"url": "https://www.dell.com/support/kbdoc/en-us/000463695/dsa-2026-208-security-update-for-dell-powerscale-insightiq-multiple-vulnerabilities", "source": "[email protected]", "tags": ["Vendor Advisory"]}]}}