9.8
CRITICAL CVSS 3.1
CVE-2026-73025
Windows iSCSI Security Feature Bypass Vulnerability
Description

Weak authentication in Windows iSCSI allows an unauthorized attacker to bypass a security feature over a network.

INFO

Published Date :

Sept. 8, 2026, 6:20 p.m.

Last Modified :

Sept. 9, 2026, 10:21 a.m.

Remotely Exploit :

Yes !
Affected Products

The following products are affected by CVE-2026-73025 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.

ID Vendor Product Action
1 Microsoft windows_10
2 Microsoft windows_server_2012
3 Microsoft windows_server_2016
4 Microsoft windows_server_2019
5 Microsoft windows_10_1607
6 Microsoft windows_10_1809
7 Microsoft windows_server_2022
8 Microsoft windows_server_2012_r2
9 Microsoft windows_server_2025
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 134c704f-9b21-4f2e-91b3-4a467353bcc0
CVSS 3.1 CRITICAL [email protected]
Solution
Apply security updates promptly to address known vulnerabilities and protect the system.
  • Install September 2026 security updates.
  • Verify all patches are successfully applied.
  • Restart affected services or systems.
  • Test system functionality post-update.
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-2026-73025.

URL Resource
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-73025
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-73025 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-2026-73025 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-2026-73025 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2026-73025 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.

  • CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0

    Sep. 09, 2026

    Action Type Old Value New Value
    Changed SSVC {'id': 'CVE-2026-73025', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'yes'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-09-04T00:00:00+00:00'} {'id': 'CVE-2026-73025', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'yes'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-09-09T04:23:09.805680Z'}
  • CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0

    Sep. 09, 2026

    Action Type Old Value New Value
    Added SSVC {'id': 'CVE-2026-73025', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'yes'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-09-04T00:00:00+00:00'}
  • New CVE Received by [email protected]

    Sep. 08, 2026

    Action Type Old Value New Value
    Added Description Weak authentication in Windows iSCSI allows an unauthorized attacker to bypass a security feature over a network.
    Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    Added CWE CWE-1390
    Added Affected New affected value received. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/73xxx/CVE-2026-73025.json">CVE-2026-73025</a>
    Added Reference https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-73025
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.