EIP-2026-116474

PRE-CVE

VBScript 5.8.7600.16385/5.8.9600.16384 - RegExpComp::PnodeParse Out-of-Bounds Read

Title source: legacy
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for EIP-2026-116474. PoCs published by Skylined.

AI-analyzed exploit summary This exploit demonstrates an information disclosure vulnerability in the VBScript engine (vbscript.dll) where a crafted regular expression with a trailing backslash causes out-of-bounds memory reads. The PoC shows how heap data beyond the regex string can be leaked, potentially exposing sensitive information.

Description

VBScript 5.8.7600.16385/5.8.9600.16384 - RegExpComp::PnodeParse Out-of-Bounds Read

Exploits (1)

exploitdb WORKING POC
by Skylined · htmldoswindows
https://www.exploit-db.com/exploits/40743

This exploit demonstrates an information disclosure vulnerability in the VBScript engine (vbscript.dll) where a crafted regular expression with a trailing backslash causes out-of-bounds memory reads. The PoC shows how heap data beyond the regex string can be leaked, potentially exposing sensitive information.

Classification
Working Poc 90%
Attack Type
Info Leak
Complexity
Moderate
Reliability
Reliable
Target: Microsoft VBScript Engine (vbscript.dll) versions 5.8.7600.16385 - 5.8.9600.16384
No auth needed
Prerequisites: Target must execute the crafted script in an application embedding the VBScript engine (e.g., Internet Explorer, WSH, or IIS with ASP)
devstral-2 · analyzed Feb 16, 2026 Full analysis →

Details

Status pre_cve
Tracked Since Feb 18, 2026