CVE-2026-70309
MEDIUMCVSS 5.4/10EPSS 0.16%
Last modified
CVE-2026-70309 is a medium-severity vulnerability rated 5.4/10 on the CVSS scale. Origin validation error in Microsoft Edge (Chromium-based) allows an unauthorized attacker to bypass a security feature over a network.. EPSS estimates a 0.16% chance of exploitation in the next 30 days.
Description
Origin validation error in Microsoft Edge (Chromium-based) allows an unauthorized attacker to bypass a security feature over a network.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | Edge Chromium | < 150.0.4078.65 |
References
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2026-70309?
Origin validation error in Microsoft Edge (Chromium-based) allows an unauthorized attacker to bypass a security feature over a network.
How severe is CVE-2026-70309?
CVE-2026-70309 has a CVSS score of 5.4/10 (MEDIUM severity). The EPSS model estimates a 0.16% probability of exploitation in the next 30 days.
How do I fix CVE-2026-70309?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
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Are you affected by CVE-2026-70309?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST