CVE-2025-55234
Windows SMB Elevation of Privilege Vulnerability
Description
SMB Server might be susceptible to relay attacks depending on the configuration. An attacker who successfully exploited these vulnerabilities could perform relay attacks and make the users subject to elevation of privilege attacks. The SMB Server already supports mechanisms for hardening against relay attacks: SMB Server signing SMB Server Extended Protection for Authentication (EPA) Microsoft is releasing this CVE to provide customers with audit capabilities to help them to assess their environment and to identify any potential device or software incompatibility issues before deploying SMB Server hardening measures that protect against relay attacks. If you have not already enabled SMB Server hardening measures, we advise customers to take the following actions to be protected from these relay attacks: Assess your environment by utilizing the audit capabilities that we are exposing in the September 2025 security updates. See Support for Audit Events to deploy SMB Server Hardening—SMB Server Signing & SMB Server EPA. Adopt appropriate SMB Server hardening measures.
INFO
Published Date :
Sept. 9, 2025, 5:16 p.m.
Last Modified :
Sept. 9, 2025, 5:16 p.m.
Remotely Exploit :
No
Source :
[email protected]
Affected Products
The following products are affected by CVE-2025-55234
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | HIGH | f38d906d-7342-40ea-92c1-6c4a2c6478c8 | ||||
| CVSS 3.1 | HIGH | [email protected] |
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2025-55234.
| URL | Resource |
|---|---|
| https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-55234 |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2025-55234 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2025-55234
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2025-55234 vulnerability anywhere in the article.
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krebsonsecurity.com
Microsoft Patch Tuesday, September 2025 Edition
Microsoft Corp. today issued security updates to fix more than 80 vulnerabilities in its Windows operating systems and software. There are no known “zero-day” or actively exploited vulnerabilities in ... Read more
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The Cyber Express
Microsoft Patch Tuesday September 2025 Fixes Risky Kernel Flaws
Three high-risk Windows kernel flaws were among the fixes included in Microsoft’s September 2025 Patch Tuesday updates released today. In all, the Patch Tuesday September 2025 updates included fixes f ... Read more
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Zero Day Initiative
The September 2025 Security Update Review
There’s a crispness in the air – at least here in North America – and with it comes the latest security patches from Adobe and Microsoft. Take a break from your scheduled activities and join us as we ... Read more
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BleepingComputer
Windows 10 KB5065429 update includes 14 changes and fixes
Microsoft has released the KB5065429 cumulative update for Windows 10 22H2 and Windows 10 21H2, with fourteen fixes or changes, including fixes for unexpected UAC prompts and severe lag and stuttering ... Read more
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BleepingComputer
Microsoft September 2025 Patch Tuesday fixes 81 flaws, two zero-days
Today is Microsoft's September 2025 Patch Tuesday, which includes security updates for 81 flaws, including two publicly disclosed zero-day vulnerabilities. This Patch Tuesday also fixes nine "Critical ... Read more
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CybersecurityNews
Microsoft September 2025 Patch Tuesday – 81 Vulnerabilities Fixed Including 22 RCE
Microsoft has released its September 2025 Patch Tuesday updates, addressing a total of 81 security vulnerabilities across its product suite. The security patches cover a wide range of software, includ ... Read more
The following table lists the changes that have been made to the
CVE-2025-55234 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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New CVE Received by [email protected]
Sep. 09, 2025
Action Type Old Value New Value Added Description SMB Server might be susceptible to relay attacks depending on the configuration. An attacker who successfully exploited these vulnerabilities could perform relay attacks and make the users subject to elevation of privilege attacks. The SMB Server already supports mechanisms for hardening against relay attacks: SMB Server signing SMB Server Extended Protection for Authentication (EPA) Microsoft is releasing this CVE to provide customers with audit capabilities to help them to assess their environment and to identify any potential device or software incompatibility issues before deploying SMB Server hardening measures that protect against relay attacks. If you have not already enabled SMB Server hardening measures, we advise customers to take the following actions to be protected from these relay attacks: Assess your environment by utilizing the audit capabilities that we are exposing in the September 2025 security updates. See Support for Audit Events to deploy SMB Server Hardening—SMB Server Signing & SMB Server EPA. Adopt appropriate SMB Server hardening measures. Added CVSS V3.1 AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Added CWE CWE-287 Added Reference https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-55234