CVE Catalog

CVE-2026-55145

MediumCVSS 6.3
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.37%

30th percentile - higher than 30% of all known CVEs

Summary

Outlook Copilot has a command injection vulnerability due to improper neutralization of special elements used in commands. This allows an authorized attacker to perform tampering over a network.

Risk Assessment

An attacker can execute unauthorized commands in the application context, potentially leading to data integrity breaches or further attacks.

Recommendation

Apply vendor-provided patches and restrict permissions for Outlook Copilot users.

Related vulnerabilities

Original NVD description (English source)

Improper neutralization of special elements used in a command ('command injection') in Outlook Copilot allows an authorized attacker to perform tampering over a network.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS