CVE-2025-58726CWE-284

Windows SMB Server Elevation of Privilege Vulnerability

High · published October 14, 2025

CVSS v3.1
7.5
EPSS
1%
Percentile
62.9
In the wild
Unconfirmed
What it is

⚡ An authorized attacker can take a stroll through your network with this Windows SMB Server vulnerability! Think of it like a guest at a party sneaking into the VIP lounge — they already have an invitation, but once inside, they can access all the exclusive goodies without permission. 🎉 If exploited, this vulnerability could allow an attacker to elevate privileges and gain control over sensitive files and system settings, potentially leading to unauthorized data access or system manipulation. It’s like giving someone a key to the front door, only for them to find the vault behind it wide open!

Put simply

Think of it like a guest at a party sneaking into the VIP lounge — they already have an invitation, but once inside, they can access all the exclusive goodies without permission. 🎉 This flaw stems from improper access control in the Windows SMB Server, which fails to adequately restrict user permissions, allowing attackers with access to escalate their privileges. Essentially, they can execute actions that should be off-limits to them.

What to do

If exploited, this vulnerability could allow an attacker to elevate privileges and gain control over sensitive files and system settings, potentially leading to unauthorized data access or system manipulation. It’s like giving someone a key to the front door, only for them to find the vault behind it wide open! To mitigate this risk, ensure all systems running Windows SMB Server are updated to the latest security patches. Additionally, review and tighten your access control policies to ensure that only authorized users can access sensitive resources. You've got this! By taking these steps, you'll bolster your defenses and keep your network safe and sound. 🛡️

The record
Technical detail
CVSS v3.1
7.5 · HIGH
Vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
CVSS v4.0
Not supplied
EPSS
0.01014 · 62.9th percentile
Weakness
CWE-284 · Improper Access Control
Published
2025-10-14T17:01Z
EPSS history
Timeline
  • 14 OCT 17:01Z
    Windows SMB Server Elevation of Privilege Vulnerability
    cvelistv5