CVE-2026-24294

HIGH

Windows SMB Server - Privilege Escalation

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 2 public exploits for CVE-2026-24294. PoCs published by adminlove520, 0xNDI.

AI-analyzed exploit summary This repository contains a functional PetitPotam exploit for CVE-2026-24294, targeting Windows EFSRPC via RPC calls to trigger authentication coercion. The code includes RPC binding logic and multiple EFS API calls to exploit the vulnerability.

Description

Improper authentication in Windows SMB Server allows an authorized attacker to elevate privileges locally.

Exploits (2)

github WORKING POC 4 stars
by adminlove520 · pythonpoc
https://github.com/adminlove520/CVE-Poc_All_in_One/tree/main/2026/CVE-2026-24294

This repository contains a functional PetitPotam exploit for CVE-2026-24294, targeting Windows EFSRPC via RPC calls to trigger authentication coercion. The code includes RPC binding logic and multiple EFS API calls to exploit the vulnerability.

Classification
Working Poc 95%
Attack Type
Auth Bypass
Complexity
Moderate
Reliability
Reliable
Target: Microsoft Windows EFSRPC
No auth needed
Prerequisites: network access to target server · SMB server for capture
devstral-2 · analyzed May 18, 2026 Full analysis →
github WORKING POC
by 0xNDI · cpoc
https://github.com/0xNDI/CVE-2026-24294

This repository contains a functional exploit for CVE-2026-24294, leveraging the PetitPotam technique to coerce authentication via the EFSRPC interface. The code includes RPC binding and multiple EFS API calls to trigger the vulnerability.

Classification
Working Poc 95%
Attack Type
Auth Bypass
Complexity
Moderate
Reliability
Reliable
Target: Microsoft Windows (EFSRPC interface)
No auth needed
Prerequisites: network access to target server · SMB server for capture
devstral-2 · analyzed Apr 30, 2026 Full analysis →

References (3)

Core 3

Scores

CVSS v3 7.8
EPSS 0.0273
EPSS Percentile 84.1%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-287
Status published
Products (37)
Microsoft/Windows 10 Version 1607 10.0.14393.0 - 10.0.14393.8957
Microsoft/Windows 10 Version 1809 10.0.17763.0 - 10.0.17763.8511
Microsoft/Windows 10 Version 21H2 10.0.19044.0 - 10.0.19044.7058
Microsoft/Windows 10 Version 22H2 10.0.19045.0 - 10.0.19045.7058
Microsoft/Windows 11 version 22H3 10.0.22631.0 - 10.0.22631.6783
Microsoft/Windows 11 Version 23H2 10.0.22631.0 - 10.0.22631.6783
Microsoft/Windows 11 Version 24H2 10.0.26100.0 - 10.0.26100.8037
Microsoft/Windows 11 Version 25H2 10.0.26200.0 - 10.0.26200.8037
Microsoft/Windows 11 version 26H1 10.0.28000.0 - 10.0.28000.1719
Microsoft/Windows 11 Version 26H1 10.0.28000.0 - 10.0.28000.1719
... and 27 more
Published Mar 10, 2026
Tracked Since Mar 11, 2026