CVE-2026-42915

June 9, 2026, 7:32 p.m.

5.7
Medium

Description

Incorrect calculation of buffer size in Windows TCP/IP allows an authorized attacker to deny service over an adjacent network.

Product(s) Impacted

Vendor Product Versions
Microsoft
  • Windows Tcp Ip
  • *

Weaknesses

Common security weaknesses mapped to this vulnerability.

CWE-131
Incorrect Calculation of Buffer Size
The product does not correctly calculate the size to be used when allocating a buffer, which could lead to a buffer overflow.

*CPE(s)

Affected systems and software identified for this CVE.

Type Vendor Product Version Update Edition Language Software Edition Target Software Target Hardware Other Information
a microsoft windows_tcp_ip / / / / / / / /

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-42915

Tags

[email protected]
CWE-131
2026-06-09
CVE-2026-42915

CVSS Score

5.7 / 10

CVSS Data - 3.1

  • Attack Vector: ADJACENT_NETWORK
  • Attack Complexity: LOW
  • Privileges Required: LOW
  • Scope: UNCHANGED
  • Confidentiality Impact: NONE
  • Integrity Impact: NONE
  • Availability Impact: HIGH

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

    View Vector String

Timeline

Published: June 9, 2026, 5:17 p.m.
Last Modified: June 9, 2026, 7:32 p.m.

Status : Undergoing Analysis

CVE has been recently published to the CVE List and has been received by the NVD.

More info

Source

[email protected]

*Disclaimer: Some vulnerabilities do not have an associated CPE. To enhance the data, we use AI to infer CPEs based on CVE details. This is an automated process and might not always be accurate.