Vulnerability Report

CVE-2009-1784

Title: Avg Avg Anti-Virus Improper Input Validation

Input Validation Error

Proof Of Concept

No public PoC currently indexed for CVE-2009-1784.

CWE Category CWE-20

Published Date May 22, 2009

Modified Date Jun 16, 2026

Exploit Status Not Found

Score 10.0 CVSS v2.0

Exploit Probability (EPSS)

3.41%

Vulnerability Summary

CVE-2009-1784: The AVG parsing engine 8.5 323, as used in multiple AVG anti-virus products including Anti-Virus Network Edition, Internet Security Netzwerk Edition, Server Edition für Linux/FreeBSD, Anti-Virus SBS Edition, and others allows remote attackers to bypass malware detection via a crafted (1) RAR and (2) ZIP archive.

Impacted Vendors

avg 1

Reference Links

http://blog.zoller.lu/2009/04/avg-zip-evasion-bypass.html http://www.securityfocus.com/archive/1/503392/100/0/threaded http://www.securityfocus.com/bid/34895 https://exchange.xforce.ibmcloud.com/vulnerabilities/50426 http://blog.zoller.lu/2009/04/avg-zip-evasion-bypass.html http://www.securityfocus.com/archive/1/503392/100/0/threaded http://www.securityfocus.com/bid/34895 https://exchange.xforce.ibmcloud.com/vulnerabilities/50426

CVSS v2.0

Source Entity [email protected]

Severity HIGH

10.0

Access Vector

N/A

Authentication

N/A

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

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2009-1784 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 09, 2025 MODIFIED

Vulnerability data or affected products updated.

May 22, 2009 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:C/I:C/A:C

Affected Stack

No specific products linked.