EIP-2026-117478

PRE-CVE

Microsoft Baseline Security Analyzer 2.3 - XML External Entity Injection

Title source: legacy
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for EIP-2026-117478. PoCs published by hyp3rlinx.

AI-analyzed exploit summary This exploit demonstrates an XML External Entity (XXE) injection vulnerability in Microsoft Baseline Security Analyzer 2.3, allowing local file exfiltration or NTLM hash theft via a crafted .mbsa file. The PoC includes both file exfiltration and forced authentication techniques.

Description

Microsoft Baseline Security Analyzer 2.3 - XML External Entity Injection

Exploits (1)

exploitdb WORKING POC
by hyp3rlinx · textlocalwindows
https://www.exploit-db.com/exploits/45354

This exploit demonstrates an XML External Entity (XXE) injection vulnerability in Microsoft Baseline Security Analyzer 2.3, allowing local file exfiltration or NTLM hash theft via a crafted .mbsa file. The PoC includes both file exfiltration and forced authentication techniques.

Classification
Working Poc 95%
Attack Type
Info Leak
Complexity
Trivial
Reliability
Reliable
Target: Microsoft Baseline Security Analyzer 2.3
No auth needed
Prerequisites: Victim must open the crafted .mbsa file · Attacker-controlled server to receive exfiltrated data or capture NTLM hashes
devstral-2 · analyzed Feb 19, 2026 Full analysis →

Details

Status pre_cve
Tracked Since Feb 18, 2026