CVE-2026-7994

import os # Proof of Concept for CVE-2026-7994 # This script demonstrates the creation of a crafted file intended to trigger the vulnerability. # Note: Actual exploitation requires a vulnerable version of Chrome and user interaction. def create_malicious_file(filename): # Placeholder for the specific payload structure that triggers the Chromoting bug. # In a real scenario, this would involve specific binary patterns or header manipulations. payload = b"\x4D\x5A\x90\x00\x03\x00\x00\x00" # Example header (MZ) payload += b"A" * 0x100 # Padding or specific overflow bytes # Specific sequence to trigger improper implementation in Chromoting payload += b"CHROME_CHROMOTING_POC_TRIGGER" with open(filename, "wb") as f: f.write(payload) print(f"[+] Malicious file '{filename}' created successfully.") print("[!] To exploit: Open this file using a vulnerable Chrome version via Chromoting.") if __name__ == "__main__": create_malicious_file("cve_2026_7994_poc.bin")

{"cve": {"id": "CVE-2026-7994", "sourceIdentifier": "[email protected]", "published": "2026-05-06T19:16:50.277", "lastModified": "2026-05-06T23:19:18.893", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "Inappropriate implementation in Chromoting in Google Chrome on Windows prior to 148.0.7778.96 allowed a local attacker to perform OS-level privilege escalation via a malicious file. (Chromium security severity: Medium)"}], "metrics": {"cvssMetricV31": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "baseScore": 7.8, "baseSeverity": "HIGH", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 1.8, "impactScore": 5.9}]}, "weaknesses": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-269"}]}], "configurations": [{"operator": "AND", "nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*", "versionEndExcluding": "148.0.7778.96", "matchCriteriaId": "5E9416A8-4333-4195-983C-78F521AF6245"}]}, {"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": false, "criteria": "cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*", "matchCriteriaId": "A2572D17-1DE6-457B-99CC-64AFD54487EA"}]}]}], "references": [{"url": "https://chromereleases.googleblog.com/2026/05/stable-channel-update-for-desktop.html", "source": "[email protected]", "tags": ["Vendor Advisory"]}, {"url": "https://issues.chromium.org/issues/499116954", "source": "[email protected]", "tags": ["Issue Tracking", "Permissions Required"]}]}}