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Vulnerability record · CVE-2026-34329 · published 12 May 2026

CVE-2026-34329: Microsoft windows 10 1607 heap-based buffer overflow vulnerability

Microsoft · Windows 10 1607

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

8.8 CVSS 3.1 High EPSS 0.53% · top 57.2% CWE-122 · Heap-based buffer overflow
8.8CVSS 3.1 base score
0.53%EPSS exploitation probability, 30 days
NoNot in CISA KEV
14Affected product versions listed by NVD
1References
17 Jun 2026Last modified by NVD

Description

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

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

14 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-34329 Vendor Advisory

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Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2026-34329), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.