CVE-2025-58726
published 2025-10-14CVE-2025-58726: Improper access control in Windows SMB Server allows an authorized attacker to elevate privileges over a network.
PriorityP353high7.5CVSS 3.1
AVNACHPRLUINSUCHIHAH
EPSS
0.98%
58.2th percentile
Improper access control in Windows SMB Server allows an authorized attacker to elevate privileges over a network.
Affected
50 ranges· showing 25
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| microsoft | windows_10_1507 | < 10.0.10240.21161 | 10.0.10240.21161 |
| microsoft | windows_10_1607 | < 10.0.14393.8519 | 10.0.14393.8519 |
| microsoft | windows_10_1809 | < 10.0.17763.7919 | 10.0.17763.7919 |
| microsoft | windows_10_21h2 | < 10.0.19044.6456 | 10.0.19044.6456 |
| microsoft | windows_10_22h2 | < 10.0.19045.6456 | 10.0.19045.6456 |
| microsoft | windows_10_version_1507 | >= 10.0.10240.0 < 10.0.10240.21161 | 10.0.10240.21161 |
| microsoft | windows_10_version_1607 | >= 10.0.14393.0 < 10.0.14393.8519 | 10.0.14393.8519 |
| microsoft | windows_10_version_1809 | >= 10.0.17763.0 < 10.0.17763.7919 | 10.0.17763.7919 |
| microsoft | windows_10_version_21h2 | >= 10.0.19044.0 < 10.0.19044.6456 | 10.0.19044.6456 |
| microsoft | windows_10_version_22h2 | >= 10.0.19045.0 < 10.0.19045.6456 | 10.0.19045.6456 |
| microsoft | windows_11_22h2 | < 10.0.22621.6060 | 10.0.22621.6060 |
| microsoft | windows_11_23h2 | <= 10.0.22631.6060 | — |
| microsoft | windows_11_24h2 | < 10.0.26100.6899 | 10.0.26100.6899 |
| microsoft | windows_11_25h2 | < 10.0.26200.6899 | 10.0.26200.6899 |
| microsoft | windows_11_version_22h2 | >= 10.0.22621.0 < 10.0.22621.6060 | 10.0.22621.6060 |
| microsoft | windows_11_version_22h3 | >= 10.0.22631.0 < 10.0.22631.6060 | 10.0.22631.6060 |
| microsoft | windows_11_version_23h2 | >= 10.0.22631.0 < 10.0.22631.6060 | 10.0.22631.6060 |
| microsoft | windows_11_version_24h2 | >= 10.0.26100.0 < 10.0.26100.6899 | 10.0.26100.6899 |
| microsoft | windows_11_version_25h2 | >= 10.0.26200.0 < 10.0.26200.6899 | 10.0.26200.6899 |
| microsoft | windows_server_2008 | — | — |
| microsoft | windows_server_2008_r2_service_pack_1 | >= 6.1.7601.0 < 6.1.7601.27974 | 6.1.7601.27974 |
| microsoft | windows_server_2008_service_pack_2 | >= 6.0.6003.0 < 6.0.6003.23571 | 6.0.6003.23571 |
| microsoft | windows_server_2012 | — | — |
| microsoft | windows_server_2012 | >= 6.2.9200.0 < 6.2.9200.25722 | 6.2.9200.25722 |
| microsoft | windows_server_2012_r2 | >= 6.3.9600.0 < 6.3.9600.22824 | 6.3.9600.22824 |
CVSS provenance
nvdv3.17.5HIGHCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
vendor_msrc7.5HIGH
Stop checking back — get the weekly exploitation signal.
Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.
Microsoft
Windows SMB Server Elevation of Privilege Vulnerability
vendor_msrc·2025-10-14·CVSS 7.5
CVE-2025-58726 [HIGH] CWE-284 Windows SMB Server Elevation of Privilege Vulnerability
Windows SMB Server Elevation of Privilege Vulnerability
Description: Improper access control in Windows SMB Server allows an authorized attacker to elevate privileges over a network.
FAQ: How could an attacker exploit the vulnerability?
To exploit this vulnerability, an attacker could execute a specially crafted script to coerce the victim machine to connect back to the attacker’s SMB Server using SMB and authenticate. This could result in elevation of privilege.
FAQ: What privileges could be gained by an attacker who successfully exploited this vulnerability?
An attacker who successfully exploited this vulnerability could gain SYSTEM privileges.
FAQ: According to the CVSS metric, the attack complexity is high (AC:H). What does that mean for this vulnerability?
The Attack requires an S
GHSA
GHSA-929j-57v4-m4wf: Improper access control in Windows SMB Server allows an authorized attacker to elevate privileges over a network
ghsa_unreviewed·2025-10-14
CVE-2025-58726 [HIGH] CWE-284 GHSA-929j-57v4-m4wf: Improper access control in Windows SMB Server allows an authorized attacker to elevate privileges over a network
Improper access control in Windows SMB Server allows an authorized attacker to elevate privileges over a network.
No detection rules found.
No public exploits indexed.
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-58726https://www.vicarius.io/vsociety/posts/cve-2025-58726-detection-script-improper-access-control-affecting-smb-server-by-microsofthttps://www.vicarius.io/vsociety/posts/cve-2025-58726-mitigation-script-improper-access-control-affecting-smb-server-by-microsoft
2025-10-14
Published