EIP-2026-115066

PRE-CVE

Comodo - Integer Overflow Leading to Heap Overflow in Win32 Emulation

Title source: legacy
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for EIP-2026-115066. PoCs published by Google Security Research.

AI-analyzed exploit summary This is a detailed technical analysis of an integer overflow vulnerability in Comodo Antivirus's x86 emulator (MACH32.DLL), specifically in the MSVBVM60!rtcLowerCaseVar function. The writeup explains how attacker-controlled input can trigger a heap overflow due to improper validation of BSTR length, leading to remote code execution as NT AUTHORITY\SYSTEM.

Description

Comodo - Integer Overflow Leading to Heap Overflow in Win32 Emulation

Exploits (1)

exploitdb WRITEUP VERIFIED
by Google Security Research · textdoswindows
https://www.exploit-db.com/exploits/39605

This is a detailed technical analysis of an integer overflow vulnerability in Comodo Antivirus's x86 emulator (MACH32.DLL), specifically in the MSVBVM60!rtcLowerCaseVar function. The writeup explains how attacker-controlled input can trigger a heap overflow due to improper validation of BSTR length, leading to remote code execution as NT AUTHORITY\SYSTEM.

Classification
Writeup 90%
Attack Type
Rce
Complexity
Moderate
Reliability
Reliable
Target: Comodo Antivirus (MACH32.DLL v6.2.15068.1057)
No auth needed
Prerequisites: Attacker must deliver malicious input to Comodo Antivirus (e.g., via email or HTTP)
devstral-2 · analyzed Feb 18, 2026 Full analysis →

Details

Status pre_cve
Tracked Since Feb 18, 2026