EIP-2026-117544

PRE-CVE

Microsoft Windows - XRM-MS File NTLM Information Disclosure Spoofing

Title source: legacy
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for EIP-2026-117544. PoCs published by hyp3rlinx.

AI-analyzed exploit summary The exploit leverages the .xrm-ms file type to inject an XML stylesheet with a UNC path, forcing an outbound connection to an attacker-controlled server and leaking the target's NTLM hash. It requires user interaction to open the file but bypasses common security mechanisms like MOTW and email inspections.

Description

Microsoft Windows - XRM-MS File NTLM Information Disclosure Spoofing

Exploits (1)

exploitdb WORKING POC
by hyp3rlinx · textlocalwindows
https://www.exploit-db.com/exploits/52277

The exploit leverages the .xrm-ms file type to inject an XML stylesheet with a UNC path, forcing an outbound connection to an attacker-controlled server and leaking the target's NTLM hash. It requires user interaction to open the file but bypasses common security mechanisms like MOTW and email inspections.

Classification
Working Poc 95%
Attack Type
Info Leak
Complexity
Trivial
Reliability
Reliable
Target: Microsoft Windows (Win7/10/11/Server 2019) with .xrm-ms file association
No auth needed
Prerequisites: User interaction to open the .xrm-ms file · Network access to attacker-controlled server
devstral-2 · analyzed Feb 19, 2026 Full analysis →

Details

Status pre_cve
Tracked Since Feb 18, 2026