What’s Vulnerable › Vulnerabilities
CVE-2026-48561: Microsoft Edge Copilot Remote Code Execution Vulnerability
- Severity: critical (CVSS 9.6 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.9% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-07-14 · updated 2026-10-28
- Weakness: CWE-77
Description
Improper neutralization of special elements used in a command ('command injection') in Copilot Chat (Microsoft Edge) allows an unauthorized attacker to execute code over a network.
Affected products
- Microsoft 365 Copilot: all versions
- Microsoft Edge Copilot for Android: from 1.0.0 before publication — fixed in publication
- Microsoft Edge Copilot for IOS: from 1.0.0 before publication — fixed in publication
How to fix
Upgrade to a fixed version: Microsoft Edge Copilot for Android publication; Microsoft Edge Copilot for IOS publication. Check the vendor advisory for mitigations.
References
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