9.8 CVE-2026-41089
Enriched by CISA Exploit
Stack-based buffer overflow in Windows Netlogon allows an unauthorized attacker to execute code over a network.
https://nvd.nist.gov/vuln/detail/CVE-2026-41089
Categories
CWE-121 : Stack-based Buffer Overflow
A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function). "Stack Overflow" is often used to mean the same thing as stack-based buffer overflow, however it is also used on occasion to mean stack exhaustion, usually a result from an excessively recursive function call. Due to the ambiguity of the term, use of stack overflow to describe either circumstance is discouraged. Fuzz testing (fuzzing) is a powerful technique for generating large numbers of diverse inputs - either randomly or algorithmically - and dynamically invoking the code with those inputs. Even with random inputs, it is often capable of generating unexpected results such as crashes, memory corruption, or resource consumption. Fuzzing effectively produces repeatable test cases that clearly indicate bugs, which helps developers to diagnose the issues. Automated static analysis, commonly referred to as Static Application Security Testing (SAST), can find some instances of this weakness by analyzing source code (or binary/compiled code) without having to execute it. Typically, this is done by building a model of data flow and control flow, then searching for potentially-vulnerable patterns that connect "sources" (origins of input) with "sinks" (destinations where the data interacts with external components, a lower layer such as the OS, etc.) Use tools that are integrated duringcompilation to insert runtime error-checking mechanismsrelated to memory safety errors, such as AddressSanitizer(ASan) for C/C++ [REF-1518]. Use an abstraction library to abstract away risky APIs. Not a complete solution. Implement and perform bounds checking on input. Do not use dangerous functions such as gets. Use safer, equivalent functions which check for boundary errors. Stack-based buffer overflows in SFK for wifi chipset used for IoT/embedded devices, as exploited in the wild per CISA KEV.
References
secure@microsoft.com
AFFECTED (from MITRE)
| Vendor | Product | Versions |
|---|---|---|
| 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) |
|
| © 2022 The MITRE Corporation. This work is reproduced and distributed with the permission of The MITRE Corporation. | ||
CPE
| cpe | start | end |
|---|---|---|
| Configuration 1 | ||
| cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:* | ||
| cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:* | ||
| cpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:*:*:*:* | < 10.0.14393.9140 | |
| cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:* | < 10.0.17763.8755 | |
| cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:* | < 10.0.20348.5074 | |
| cpe:2.3:o:microsoft:windows_server_2022_23h2:*:*:*:*:*:*:*:* | < 10.0.25398.2330 | |
| cpe:2.3:o:microsoft:windows_server_2025:*:*:*:*:*:*:*:* | < 10.0.26100.32772 | |
REMEDIATION
EXPLOITS
Exploit-db.com
| id | description | date | |
|---|---|---|---|
| No known exploits | |||
POC Github
Other Nist (github, ...)
| Url |
|---|
| No known exploits |
CAPEC
Common Attack Pattern Enumerations and Classifications
| id | description | severity |
|---|---|---|
| No entry | ||
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