EIP-2026-115408

PRE-CVE

Hyper-V - 'vmswitch.sys' VmsMpCommonPvtHandleMulticastOids Guest to Host Kernel-Pool Overflow

Title source: legacy
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for EIP-2026-115408. PoCs published by Google Security Research.

AI-analyzed exploit summary This exploit demonstrates a heap-based buffer overflow in the RNDIS (Remote Network Driver Interface Specification) handling of the OID_802_3_MULTICAST_LIST request in Windows Hyper-V. The vulnerability arises from an integer division flaw that allows an attacker to overflow a buffer by 1 to 5 bytes, potentially leading to remote code execution in the host's kernel context.

Description

Hyper-V - 'vmswitch.sys' VmsMpCommonPvtHandleMulticastOids Guest to Host Kernel-Pool Overflow

Exploits (1)

exploitdb WORKING POC VERIFIED
by Google Security Research · cdoswindows
https://www.exploit-db.com/exploits/39713

This exploit demonstrates a heap-based buffer overflow in the RNDIS (Remote Network Driver Interface Specification) handling of the OID_802_3_MULTICAST_LIST request in Windows Hyper-V. The vulnerability arises from an integer division flaw that allows an attacker to overflow a buffer by 1 to 5 bytes, potentially leading to remote code execution in the host's kernel context.

Classification
Working Poc 90%
Attack Type
Rce
Complexity
Moderate
Reliability
Reliable
Target: Microsoft Windows Hyper-V (vmswitch.sys)
No auth needed
Prerequisites: Access to a guest VM with RNDIS network interface · Ability to send crafted RNDIS messages to the host
devstral-2 · analyzed Feb 16, 2026 Full analysis →

Details

Status pre_cve
Tracked Since Feb 18, 2026