CVE-2026-41089
Windows Netlogon Remote Code Execution Vulnerability
Stack-based buffer overflow in Windows Netlogon allows an unauthorized attacker to execute code over a network.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
Windows Netlogon Remote Code Execution Vulnerability
Stack-based buffer overflow in Windows Netlogon allows an unauthorized attacker to execute code over a network.
- Record
CVE-2026-41089- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C - Weakness
- CWE-121
- Updated
- 2026-11-02
EUVDEUVD-2026-29681
Stack-based buffer overflow in Windows Netlogon allows an unauthorized attacker to execute code over a network.
- Record
EUVD-2026-29681- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-7j2c-v44v-wc8f
Stack-based buffer overflow in Windows Netlogon allows an unauthorized attacker to execute code...
Stack-based buffer overflow in Windows Netlogon allows an unauthorized attacker to execute code over a network.
- Record
GHSA-7j2c-v44v-wc8f- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-121
- Updated
- 2026-11-02
NVD
Stack-based buffer overflow in Windows Netlogon allows an unauthorized attacker to execute code over a network.
- Record
CVE-2026-41089- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-121
- Updated
- 2026-11-02
Affected products
- microsoft windows server 2012
- microsoft windows server 2012 (server core installation)
- microsoft windows server 2012 r2
- microsoft windows server 2012 r2 (server core installation)
- microsoft windows server 2016
- microsoft windows server 2016 (server core installation)
- microsoft windows server 2019
- microsoft windows server 2019 (server core installation)
- microsoft windows server 2022
- microsoft windows server 2022, 23h2 edition (server core installation)
- microsoft windows server 2025
- microsoft windows server 2025 (server core installation)
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Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| PoC in GitHub | 0xABCD01/CVE-2026-41089 | 2026-06-01 |
| PoC in GitHub | ashrafzaryouh/CVE-2026-41089 | 2026-06-02 |
| PoC in GitHub | ADScanPro/CVE-2026-41089-LongLogon | 2026-06-03 |
| PoC in GitHub | SyntaxMethod/CVE-2026-41089-Netlogon-RCE-PoC | 2026-09-11 |
| PoC in GitHub | Gillarchnganasan2735/CVE-2026-41089-Netlogon-RCE-PoC | 2026-09-21 |
| PoC in GitHub | 1posix/CVE-2026-41089-PoC | 2026-09-26 |
History
| Recorded | Changed | Sources |
|---|---|---|
| exploits | PoC in GitHub | |
| exploits, facts | PoC in GitHub | |
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, PoC in GitHub |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-41089 is a critical vulnerability (CVSS 9.8) in Microsoft Windows Server 2012, published May 12, 2026. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 78.3%, the 99th percentile. No source names a fixed version.