CVE-2025-59286

Name: CVE-2025-59286
Creator: NVD / NIST
Published: 2025-10-09T21:15:39.133+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.3/10EPSS 0.52%

Last modified Jun 17, 2026

CVE-2025-59286 is a critical-severity vulnerability rated 9.3/10 on the CVSS scale. Improper neutralization of special elements used in a command ('command injection') in Copilot allows an unauthorized attacker to disclose information over a network.. EPSS estimates a 0.52% chance of exploitation in the next 30 days.

Description

Improper neutralization of special elements used in a command ('command injection') in Copilot allows an unauthorized attacker to disclose information over a network.

Metrics

CVSS 3.1

9.3/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:N

EPSS Probability

0.52%

40.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-77

Affected Software

Vendor	Product	Versions
Microsoft	365 Copilot Chat	All versions

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-59286Vendor Advisory

Timeline

Published: Oct 9, 2025
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2025-59286?

Improper neutralization of special elements used in a command ('command injection') in Copilot allows an unauthorized attacker to disclose information over a network.

How severe is CVE-2025-59286?

CVE-2025-59286 has a CVSS score of 9.3/10 (CRITICAL severity). The EPSS model estimates a 0.52% probability of exploitation in the next 30 days.

How do I fix CVE-2025-59286?

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.

Are you affected by CVE-2025-59286?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST