HighVulnerability

CVE-2026-45497: Microsoft Copilot command injection allowing remote code execution

Source: NVD(opens in a new tab)
Identifier: CVE-2026-45497
Published: June 4, 2026
Record updated: October 9, 2026

Known exploitation: Not listed in the CISA Known Exploited Vulnerabilities catalog at the last check.
EPSS: 0.5%

Summary

CVE-2026-45497 is a command injection flaw (CWE-77) in Microsoft Copilot, classified as Improper Neutralization of Special Elements used in a Command. The source says an authorized attacker can execute code over a network. NVD has not yet provided an assessment, and the record was published and last modified on 06/04/2026.

Mitigation

The source does not state a fix yet. Check the original advisory for updates.

Details

Scores and exploitation

CVSS score: 7.7(high)
CVSS vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:L/A:L
Attack vector: network
Attack complexity: high
Privileges required: low
User interaction: none
EPSS: 0.5%Estimated probability that this CVE is exploited in the next 30 days, from the FIRST Exploit Prediction Scoring System. Read on November 4, 2026.
Disclosure date: June 4, 2026

Weaknesses and techniques

Weakness (CWE): CWE-77
Attack pattern (CAPEC): CAPEC-88

Affected

Vendors: Microsoft

Classification

Attack type: Other
Attack sophistication: Moderate
AI component targeted: API
Impact: Integrity,
Confidentiality
Labels: security

How this record was produced

Summaries, mitigations and labels on this page are generated automatically from the source. The linked source is authoritative. The source gives this advisory a description and no title, so the title above is a headline generated from the source text.

Original source: https://nvd.nist.gov/vuln/detail/CVE-2026-45497

First tracked: June 5, 2026 at 02:08 AM ET, from NVD/CVE Database

Classifier: claude-haiku-5-5, prompt v4

Classifier confidence: 80% (self-assessed)

Topics

Coding assistants

Summary

Mitigation

Topics

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