Description
Out-of-bounds read in Windows DNS allows an authorized attacker to execute code over a network.
Published: 2026-10-13
Score: 6.5 Medium
EPSS: 1.3% Low
KEV: No
Impact: Remote Code Execution
Action: Assess Impact
AI Analysis

Impact

The vulnerability is an out‑of‑bounds read in the Windows DNS server that can be exploited by an authorized attacker to cause arbitrary code execution on the target system. The weakness, identified as CWE‑125, allows the attacker to read unintended memory and then leverage that read to trigger execution of malicious code. Because of this, the confidentiality, integrity, and availability of the affected server are compromised, potentially allowing full control over the networked system.

Affected Systems

Microsoft Windows Server 2022 and Microsoft Windows Server 2025 (including Server Core installations) are affected. No specific patch versions are listed, but all installations of these server releases are subject to the vulnerability and should be considered vulnerable until remedied.

Risk and Exploitability

The CVSS score of 6.5 classifies the issue as medium severity. EPSS score of 1% indicates a low exploitation probability, leaving the exploitation likelihood indeterminate. The vulnerability is not listed in CISA KEV. The attack vector is inferred to be network‑based, exploiting the DNS service, and requires the attacker to have authorized access to the server. Exploitation would involve sending a crafted DNS query that triggers the out‑of‑bounds read and leads to code execution.

Generated by OpenCVE AI on October 17, 2026 at 03:32 UTC.

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

  • Apply the latest Microsoft security updates for Windows Server 2022 and 2025 that address CVE-2026-70119.
  • Restrict network access to the DNS service so it is reachable only by trusted hosts or subnets.
  • Enable detailed DNS traffic to detect anomalous queries or patterns that may indicate exploitation attempts.

Generated by OpenCVE AI on October 17, 2026 at 03:32 UTC.

Tracking

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Advisories

No advisories yet.

History

Fri, 16 Oct 2026 17:45:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:x64:*
cpe:2.3:o:microsoft:windows_server_2025:*:*:*:*:*:*:x64:*

Wed, 14 Oct 2026 23:00:00 +0000

Type Values Removed Values Added
First Time appeared Microsoft windows Server 2025 (server Core Installation)
Vendors & Products Microsoft windows Server 2025 (server Core Installation)

Wed, 14 Oct 2026 00:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Tue, 13 Oct 2026 19:15:00 +0000

Type Values Removed Values Added
Description Out-of-bounds read in Windows DNS allows an authorized attacker to execute code over a network.
Title Windows DNS Remote Code Execution Vulnerability
First Time appeared Microsoft
Microsoft windows Server 2022
Microsoft windows Server 2025
Weaknesses CWE-125
CPEs cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2025:*:*:*:*:*:*:*:*
Vendors & Products Microsoft
Microsoft windows Server 2022
Microsoft windows Server 2025
References
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C'}


Subscriptions

Microsoft Windows Server 2022 Windows Server 2025 Windows Server 2025 (server Core Installation)
cve-icon MITRE

Status: PUBLISHED

Assigner: microsoft

Published:

Updated: 2026-10-31T18:02:04.869Z

Reserved: 2026-08-03T23:28:38.302Z

Link: CVE-2026-70119

cve-icon Vulnrichment

Updated: 2026-10-13T20:57:11.207Z

cve-icon NVD

Status : Analyzed

Published: 2026-10-13T19:19:24.130

Modified: 2026-10-16T17:35:02.393

Link: CVE-2026-70119

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-17T03:45:01Z

Weaknesses