cve-2026-41089
CRITICAL CVSS 9.8 nvd
Description
Stack-based buffer overflow in Windows Netlogon allows an unauthorized attacker to execute code over a network.
Timeline
- Published
- 2026-05-12
- Last Modified
- 2026-10-26
CVSS Details
- Attack Vector
- NETWORK
- Attack Complexity
- LOW
- Privileges Required
- NONE
Affected Products
- microsoft windows_server_2012
- microsoft windows_server_2016
- microsoft windows_server_2019
- microsoft windows_server_2022
- microsoft windows_server_2022_23h2
- microsoft windows_server_2025
Weaknesses (CWE)
CVSS metrics
| Version | Base | Severity | Vector | Exploitability | Impact | Source |
|---|---|---|---|---|---|---|
| 3.1 | 9.8 | CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
3.9 | 5.9 | secure@microsoft.com |
CPE configurations
OR
| CPE | Version range | Vulnerable |
|---|---|---|
cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:* |
— | yes |
cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:* |
— | yes |
cpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:*:*:*:* |
< 10.0.14393.9140 | yes |
cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:* |
< 10.0.17763.8755 | yes |
cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:* |
< 10.0.20348.5074 | yes |
cpe:2.3:o:microsoft:windows_server_2022_23h2:*:*:*:*:*:*:*:* |
< 10.0.25398.2330 | yes |
cpe:2.3:o:microsoft:windows_server_2025:*:*:*:*:*:*:*:* |
< 10.0.26100.32772 | yes |
NVD metadata
- NVD status
- Analyzed
- Source identifier
secure@microsoft.com
References
Linked Vulnerabilities
No linked vulnerabilities found.
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"dateUpdated": "2026-10-26T18:10:00.173",
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"configurations": [
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"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "Stack-based buffer overflow in Windows Netlogon allows an unauthorized attacker to execute code over a network."
},
{
"lang": "es",
"value": "Desbordamiento de búfer basado en pila en Windows Netlogon permite a un atacante no autorizado ejecutar código a través de una red."
}
],
"id": "CVE-2026-41089",
"lastModified": "2026-10-26T18:10:00.173",
"metrics": {
"cvssMetricV31": [
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"cvssData": {
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"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 9.8,
"baseSeverity": "CRITICAL",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
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"role": "CISA Coordinator",
"timestamp": "2026-05-13T03:56:37.444220Z",
"version": "2.0.3"
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"published": "2026-05-12T18:17:20.720",
"references": [
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"tags": [
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],
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-41089"
}
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"sourceIdentifier": "secure@microsoft.com",
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"weaknesses": [
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"value": "CWE-121"
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},
"severity": "CRITICAL",
"source": "nvd",
"title": "Stack-based buffer overflow in Windows Netlogon allows an unauthorized attacker to execute code over a network."
}