PT-2026-47894 · Microsoft · Windows Tcp/Ip

Published 2026-06-09 · Updated 2026-06-09 · CVE-2026-42915

Positive Technologies (AI Summary)

CVSS v3.1

5.7

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Windows TCP/IP (affected versions not specified)

Description An incorrect calculation of buffer size in the TCP/IP stack allows an authorized attacker to cause a denial-of-service condition over an adjacent network.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

DoS

Weakness Enumeration

CWE-131

Related Identifiers

CVE-2026-42915

Affected Products

Windows Tcp/Ip

References · 4

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-42915 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-42915 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-42915 · Security Note
• https://msrc.microsoft.com/update-guide/en-US/advisory/CVE-2026-42915 · Vendor Advisory