Microsoft Edge vulnerabilities and fixes

CVEs that mention Microsoft Edge, ranked by priority. 20 tracked.

Microsoft Edge has 20 tracked vulnerabilities, 0 critical. A fixed release or vendor patch exists for 20. Most recent: 2026-08-11. Highest priority: CVE-2026-66321 (score 47/100).

• CVE-2026-66321 HIGH 7.4 UPGRADE Access of resource using incompatible type ('type confusion') in Microsoft Edge (Chromium-based) allows an una
• CVE-2026-57990 HIGH 7.4 MITIGATE Files or directories accessible to external parties in Microsoft Edge (Chromium-based) allows an unauthorized
• CVE-2026-65802 HIGH 7.4 UPGRADE External control of file name or path in Microsoft Edge for Android allows an unauthorized attacker to disclos
• CVE-2026-66312 MEDIUM 6.5 UPGRADE Buffer over-read in Microsoft Edge (Chromium-based) allows an authorized attacker to execute code over a netwo
• CVE-2026-66315 HIGH 7.5 UPGRADE Use after free in Microsoft Edge (Chromium-based) allows an unauthorized attacker to execute code over a netwo
• CVE-2026-66326 MEDIUM 6.5 UPGRADE Missing authorization in Microsoft Edge (Chromium-based) allows an unauthorized attacker to execute code over
• CVE-2026-66318 HIGH 8.1 UPGRADE Origin validation error in Microsoft Edge (Chromium-based) allows an unauthorized attacker to disclose informa
• CVE-2026-57989 HIGH 7.4 UPGRADE Origin validation error in Microsoft Edge (Chromium-based) allows an unauthorized attacker to disclose informa
• CVE-2026-66310 HIGH 7.7 UPGRADE External control of file name or path in Microsoft Edge for Android allows an unauthorized attacker to disclos
• CVE-2026-66314 MEDIUM 6.5 UPGRADE Time-of-check time-of-use (toctou) race condition in Microsoft Edge (Chromium-based) allows an unauthorized at
• CVE-2026-65804 MEDIUM 6.1 UPGRADE Improper control of generation of code ('code injection') in Microsoft Edge (Chromium-based) allows an unautho
• CVE-2026-66311 MEDIUM 6.2 UPGRADE Missing authorization in Microsoft Edge (Chromium-based) allows an unauthorized attacker to perform tampering
• CVE-2026-66325 MEDIUM 6.1 UPGRADE Server-side request forgery (ssrf) in Microsoft Edge (Chromium-based) allows an unauthorized attacker to perfo
• CVE-2026-62828 MEDIUM 5.4 MITIGATE Improper input validation in Microsoft Edge for Android allows an unauthorized attacker to perform tampering o
• CVE-2026-66322 HIGH 7.1 UPGRADE Origin validation error in Microsoft Edge (Chromium-based) allows an unauthorized attacker to perform spoofing
• CVE-2026-70339 MEDIUM 5.4 UPGRADE Access of resource using incompatible type ('type confusion') in Microsoft Edge (Chromium-based) allows an una
• CVE-2026-66313 MEDIUM 6.8 UPGRADE Origin validation error in Microsoft Edge (Chromium-based) allows an unauthorized attacker to perform tamperin
• CVE-2026-57978 MEDIUM 5.4 UPGRADE Origin validation error in Microsoft Edge (Chromium-based) allows an unauthorized attacker to perform spoofing
• CVE-2026-66316 MEDIUM 5.4 UPGRADE Origin validation error in Microsoft Edge (Chromium-based) allows an unauthorized attacker to perform spoofing
• CVE-2026-66317 MEDIUM 5.4 UPGRADE Origin validation error in Microsoft Edge (Chromium-based) allows an unauthorized attacker to perform tamperin

FAQ

How do I fix Microsoft Edge vulnerabilities?

Open the CVE for your version, check the affected range, then follow the listed action: upgrade to the fixed release, or downgrade or mitigate if no fix exists yet. Commands for each OS are shown on every CVE page.

Is Microsoft Edge being exploited right now?

None of the tracked Microsoft Edge CVEs are on the CISA Known Exploited Vulnerabilities list at the moment. This is checked every 20 minutes.

Which Microsoft Edge CVE should I patch first?

CVE-2026-66321 currently ranks highest (47/100): Access of resource using incompatible type ('type confusion') in Microsoft Edge (Chromium-based) allows an una.

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