PT-2026-47883 · Microsoft · Windows Tcp/Ip+1
CVE-2026-42904
·
Published
2026-06-09
·
Updated
2026-07-06
CVSS v3.1
9.6
Critical
| Vector | AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H |
Name of the Vulnerable Software and Affected Versions
Windows TCP/IP (affected versions not specified)
Description
A heap-based buffer overflow in the Windows TCP/IP stack allows an unauthorized attacker located on an adjacent network to elevate privileges to SYSTEM level. A heap-based buffer overflow occurs when a program writes more data to a heap-allocated memory block than it can hold, potentially corrupting adjacent memory.
Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
DoS
Heap Based Buffer Overflow
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Weakness Enumeration
Related Identifiers
Affected Products
Windows
Windows Tcp/Ip