CVE-2026-48561

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.

Score

CVSS 3.1 9.6 Critical

Status

Modified - secure@microsoft.com

Published

2026-07-14

Last modified

2026-10-28

Weaknesses

CWE-77

Affected products

• 365 Copilot (Microsoft)
• Edge Copilot (Microsoft)

References

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-48561