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CVE-2026-55145

MEDIUM

6.3

CVSS 3.1

Metadata

CVE ID: CVE-2026-55145
State: PUBLISHED
Assigner: microsoft
Reserved: 2026-06-16 15:03 UTC
Published: 2026-07-14 17:09 UTC
Last updated: 2026-07-15 21:13 UTC
Primary CWE: CWE-77
CWE-77: Improper Neutralization of Special Elements used in …
Vendor / Product: Microsoft / Microsoft Copilot
Sources: cve.org · NVD

Severity & Metrics

6.3 MEDIUM CVSS 3.1

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:L/A:N/E:P/RL:O/RC:C

SSVC — CISA Coordinator

Exploitation: none
Automatable: no
Tech. Impact: partial

Affected products (1)

Vendor	Product	Platform	Versions
Microsoft	Microsoft Copilot	—	-

Weakness (CWE)

CWE	Source	Description
CWE-77	cna	CWE-77: Improper Neutralization of Special Elements used in a Command ('Command Injection')

CVSS scores (1)

Score	Severity	Version	Source	Vector
6.3	MEDIUM	3.1	cna	CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:L/A:N/E:P/RL:O/RC:C

References (1)

Outlook Copilot Tampering Vulnerability https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-55145

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