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EPSS 0.5%top 62%

CVE-2026-34329: CWE-122: Heap-based Buffer Overflow in Microsoft Windows 10 Version 1607

0
High
VulnerabilityCVE-2026-34329cvecve-2026-34329cwe-122
Published: 05/12/2026 (05/12/2026, 16:58:21 UTC)
Source: CVE Database V5
Vendor/Project: Microsoft
Product: Windows 10 Version 1607

Description

Heap-based buffer overflow in Windows Message Queuing allows an unauthorized attacker to execute code over an adjacent network.

CVSS v3.1

Score 8.8high

Attack Vector
Adjacent Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

Affected software

Affected versions
10.0.14393.0

AI-Powered Analysis

Machine-generated threat intelligence

AILast updated: 06/19/2026, 17:31:51 UTC

Technical Analysis

This vulnerability (CVE-2026-34329) involves a heap-based buffer overflow in the Windows Message Queuing component of Microsoft Windows 10 Version 1607 (build 10.0.14393.0). The flaw allows an attacker without privileges or user interaction to execute arbitrary code remotely over an adjacent network. The vulnerability is classified under CWE-122 (Heap-based Buffer Overflow) and has a CVSS v3.1 score of 8.8, indicating high impact on confidentiality, integrity, and availability. Microsoft has released an official fix to address this issue.

Potential Impact

Successful exploitation of this vulnerability could allow an attacker to execute arbitrary code on the affected system remotely, potentially leading to full system compromise. The vulnerability affects confidentiality, integrity, and availability of the system. There are no known exploits in the wild at this time.

Mitigation Recommendations

An official fix is available from Microsoft. Users and administrators should apply the security update provided by Microsoft for Windows 10 Version 1607 (build 10.0.14393.0) as soon as possible. Refer to the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-34329 for detailed patching instructions.

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Technical Details

Data Version
5.2
Assigner Short Name
microsoft
Date Reserved
2026-03-26T21:02:16.445Z
Cvss Version
3.1
State
PUBLISHED
Remediation Level
official-fix
Vendor Advisory Urls
[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-34329","vendor":"Microsoft"}]

Threat ID: 6a03653ccbff5d861008c3d6

Added to database: 05/12/2026, 17:37:00 UTC

Last enriched: 06/19/2026, 17:31:51 UTC

Last updated: 07/31/2026, 19:22:58 UTC

Views: 65

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