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CVE-2018-8626
CRITICAL
A remote code execution vulnerability exists in Windows Domain Name System (DNS) servers when they fail to properly handle requests, aka "Windows DNS Server Heap Overflow Vulnerability." This affects Windows Server 2012 R2, Windows Server 2019, Windows Server 2016, Windows 10, Windows 10 Servers.
Published: Dec 12, 2018
Modified: Jun 17, 2026
CWE-787
CVSS Metrics
CVSSv3
Attack Vector:
NETWORK
Attack Complexity:
LOW
Privileges Required:
NONE
User Interaction:
NONE
Scope:
UNCHANGED
Confidentiality Impact:
HIGH
Integrity Impact:
HIGH
Availability Impact:
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected Products (9)
| Vendor | Product | Version |
|---|---|---|
| microsoft | windows_10 | 1607 |
| microsoft | windows_10 | 1709 |
| microsoft | windows_10 | 1803 |
| microsoft | windows_10 | 1809 |
| microsoft | windows_server_2012 | r2 |
| microsoft | windows_server_2016 | - |
| microsoft | windows_server_2016 | 1709 |
| microsoft | windows_server_2016 | 1803 |
| microsoft | windows_server_2019 | - |
GitHub Security Advisory GHSA-r9mj-8p57-hmj9
A remote code execution vulnerability exists in Windows Domain Name System (DNS) servers when...
References (4)
- http://www.securityfocus.com/bid/106076 Third Party Advisory, VDB Entry
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8626 Patch, Vendor Advisory
- http://www.securityfocus.com/bid/106076 Third Party Advisory, VDB Entry
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8626 Patch, Vendor Advisory
Risk Scores
CVSS Score
9.8 / 10
EPSS Score
21.12%
Top 3% most likely to be exploited
Threat Score
45.5 / 100
Data Sources
NVD
EPSS
GitHub