Home/CVE/Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
CVE

CVE-2025-47165

Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally.

Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally.

HIGH · CVSS 7.8 EPSS 0.01019
Act now
  • Public exploit or PoC is available
  • CVSS base score ≥ 7.0
Sigma rules13 YARA rules0
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Weakness Classification

CWE-416Use After Free
▤

Affected Products & Versions

5
microsoft 365 appsall versions
microsoft excelall versions
microsoft officeall versions
microsoft office long term servicing channelall versions
microsoft office online server< 16.0.10417.20018
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Public Exploits & PoCs

1
remoteMicrosoft Excel 2024 Use after free - Remote Code Execution (RCE)2025-06-26
◈

Sigma Hunt Rules

13
Exact rules name this CVE ID. Product rules name an affected product in their title. Related rules cover techniques used by actors who exploited this CVE. Showing the most relevant matches; the complete related set is on the full drill-down.
producthighPython Function Execution Security Warning Disabled In Excel
producthighPotential Excel.EXE DCOM Lateral Movement Via ActivateMicrosoftApp
producthighPotential Persistence Via Excel Add-in - Registry
producthighPython Function Execution Security Warning Disabled In Excel - Registry
productmediumMicrosoft Excel Add-In Loaded From Uncommon Location
producthighSuspicious Microsoft Office Child Process - MacOS
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Scoring & Timeline

7.8
HIGH · CVSS v3.1 · secure@microsoft.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD10 Jun 2025 · 05:23 PM
CVSS VectorCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
no
Technical impact
total
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
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Vendor Advisories

1
msrcCVE-2025-47165Remote Code Execution
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