CVE-2025-64676Network attack vector

Authenticated code execution via path traversal

Published Dec 18, 2025 · Updated Dec 18, 2025

Path traversal in Microsoft Purview eDiscovery allows remote authenticated users to execute code through the cloud service. Microsoft identifies crafted '.../...//' path syntax and code injection, but does not disclose the affected endpoint or how the path reaches code generation. High-privilege access is required; successful exploitation executes code in the hosted service with confidentiality, integrity, and availability impact.

CVSS severity7.2
High
EPSS probability1.01%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Path traversal in Microsoft Purview eDiscovery allows remote authenticated users to execute code through the cloud service. Microsoft identifies crafted '.../...//' path syntax and code injection, but does not disclose the affected endpoint or how the path reaches code generation. High-privilege access is required; successful exploitation executes code in the hosted service with confidentiality, integrity, and availability impact.

The record

CVE
CVE-2025-64676
Published
Dec 18, 2025
Updated
Dec 18, 2025
Vendor
Microsoft
Product
Microsoft Purview eDiscovery
Classifications
CWE-35, CWE-94, T1190
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Dec 18, 2025CVE publishedPublication date reported by the CVE source.
  2. Dec 18, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=N/A

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Microsoft · Microsoft Purview eDiscoveryversion=N/A

Published CVSS scores

7.2Microsoft CorporationCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-35Path Traversal: '.../...//'
CWE-94Improper Control of Generation of Code ('Code Injection')
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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