EIP-2026-103418

PRE-CVE

Avast! - Heap Overflow Unpacking MoleBox Archives

Title source: legacy
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for EIP-2026-103418. PoCs published by Google Security Research.

AI-analyzed exploit summary This exploit demonstrates a heap overflow vulnerability in Avast's moleboxMaybeUnpack function during the decryption of packed images, leading to remote code execution as NT AUTHORITY\SYSTEM. The PoC triggers heap corruption in AvastSvc.exe, confirmed via a crash dump and stack trace.

Description

Avast! - Heap Overflow Unpacking MoleBox Archives

Exploits (1)

exploitdb WORKING POC VERIFIED
by Google Security Research · textdosmultiple
https://www.exploit-db.com/exploits/38933

This exploit demonstrates a heap overflow vulnerability in Avast's moleboxMaybeUnpack function during the decryption of packed images, leading to remote code execution as NT AUTHORITY\SYSTEM. The PoC triggers heap corruption in AvastSvc.exe, confirmed via a crash dump and stack trace.

Classification
Working Poc 90%
Attack Type
Rce
Complexity
Moderate
Reliability
Reliable
Target: Avast Antivirus (specific version not specified)
No auth needed
Prerequisites: Ability to deliver a malformed molebox archive to the target system · Avast Antivirus installed and running
devstral-2 · analyzed Feb 16, 2026 Full analysis →

Details

Status pre_cve
Tracked Since Feb 18, 2026