Cyber Resilience

CVE-2026-45497

HighRCEUpdated

Published: 04 June 2026

Published
04 June 2026
Modified
17 June 2026
KEV Added
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Patch
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CVSS Score v3.1 7.7 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:L/A:L
EPSS Score 0.0045 36.1th percentile
Risk Priority 55 floored blend · peak EPSS

Summary

CVE-2026-45497 is a high-severity Command Injection (CWE-77) vulnerability in Microsoft Copilot. Its CVSS base score is 7.7 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 36.1th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

This vulnerability is AI-related — categorised as Enterprise AI Assistants; in the Other ATLAS/OWASP Terms risk domain.

OWASP Top 10 for Web (2025)

A05:2025 Injection

EU & UK References

Vulnerability details

Improper neutralization of special elements used in a command ('command injection') in Microsoft Copilot allows an authorized attacker to execute code over a network.

CWE(s)
CWE-77

AI Security AnalysisAI

AI Category
Enterprise AI Assistants
Risk Domain
Other ATLAS/OWASP Terms
OWASP Top 10 for LLMs 2025
None mapped
Classification Reason
Matched keywords: copilot

Related Threats

MITRE ATT&CK Enterprise TechniquesAI

T1190 Exploit Public-Facing Application Initial Access
Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.
attack.mitre.org →
T1059 Command and Scripting Interpreter Execution
Adversaries may abuse command and script interpreters to execute commands, scripts, or binaries.
attack.mitre.org →
Why these techniques?

Command injection in network-accessible Microsoft Copilot directly enables remote code execution via T1190 and arbitrary command interpreter use via T1059.

Confidence: HIGH · MITRE ATT&CK Enterprise v19.0

Affected Assets

microsoft
copilot
all versions

Mitigating Controls

No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.

References