Vulnerability Report

CVE-2006-4626

Title: Alwil Avast Antivirus RCE

Memory Corruption

Proof Of Concept

No public PoC currently indexed for CVE-2006-4626.

CWE Category NVD-CWE-noinfo

Published Date Sep 07, 2006

Modified Date Jun 16, 2026

Exploit Status Not Found

Score 7.5 CVSS v2.0

Exploit Probability (EPSS)

4.58%

Vulnerability Summary

CVE-2006-4626: Heap-based buffer overflow in alwil avast! Anti-virus Engine before 4.7.869 allows remote attackers to execute arbitrary code via a crafted LHA file that contains extended headers with file and directory names whose concatenation triggers the overflow.

Impacted Vendors

alwil 1

avast 1

Reference Links

http://secunia.com/advisories/21794 http://www.hustlelabs.com/advisories/04072006_alwil.pdf http://www.securityfocus.com/bid/19903 http://www.vupen.com/english/advisories/2006/3515 http://secunia.com/advisories/21794 http://www.hustlelabs.com/advisories/04072006_alwil.pdf http://www.securityfocus.com/bid/19903 http://www.vupen.com/english/advisories/2006/3515

CVSS v2.0

Source Entity [email protected]

Severity HIGH

7.5

Access Vector

N/A

Authentication

N/A

RAW VECTOR AV:N/AC:L/Au:N/C:P/I:P/A:P

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2006-4626 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

June 16, 2026 MODIFIED

Vulnerability data updated via NVD.

April 03, 2025 MODIFIED

Vulnerability data or affected products updated.

September 07, 2006 PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector N/A

Complexity N/A

Privileges N/A

Interaction NONE

CVSS Vector String


                                    AV:N/AC:L/Au:N/C:P/I:P/A:P

Affected Stack

No specific products linked.