Vulnerability record · CVE-2009-1783 · published 22 May 2009

CVE-2009-1783: F-prot antivirus improper input validation vulnerability

F Prot · F Prot Antivirus

Multiple FRISK Software F-Prot anti-virus products, including Antivirus for Exchange, Linux on IBM zSeries, Linux x86 File Servers, Linux x86 Mail Servers, Linux x86 Workstations, Solaris Mail Servers, Antivirus for Windows, and others, allow remote attackers to bypass malware detection via a crafted CAB archive.

10.0 CVSS 2.0 High EPSS 3.4% · top 11.5% CWE-20 · Improper input validation

10.0CVSS 2.0 base score

3.4%EPSS exploitation probability, 30 days

NoNot in CISA KEV

3Affected product versions listed by NVD

8References

16 Jun 2026Last modified by NVD

Description

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

Affected products

3 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

F Prot Antivirus F Prot

F Prot Aves F Prot

F Prot Milter F Prot

References

Link	Tags
http://blog.zoller.lu/2009/04/advisory-f-prot-frisk-cab-bypass.html
http://www.securityfocus.com/archive/1/503393/100/0/threaded
http://www.securityfocus.com/bid/34896
https://exchange.xforce.ibmcloud.com/vulnerabilities/50427
http://blog.zoller.lu/2009/04/advisory-f-prot-frisk-cab-bypass.html
http://www.securityfocus.com/archive/1/503393/100/0/threaded
http://www.securityfocus.com/bid/34896
https://exchange.xforce.ibmcloud.com/vulnerabilities/50427

Track CVE-2009-1783 inside VULONE

Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.

Start free Open in platform

Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

7.5CVE-2006-6293F-prot antivirus memory buffer overflow vulnerabilityHeap-based buffer overflow in FRISK Software F-Prot Antivirus before 4.6.7 allows user-assisted remote attackers to execute arbitrary code via a craf…EPSS 16%5 Dec 2006 5.0CVE-2008-5747F-prot antivirus vulnerabilityF-Prot 4.6.8 for GNU/Linux allows remote attackers to bypass anti-virus protection via a crafted ELF program with a "corrupted" header that still all…EPSS 3.1%29 Dec 2008 5.0CVE-2008-3447F-prot antivirus vulnerabilityThe scanning engine in F-Prot Antivirus 6.2.1 4252 allows remote attackers to cause a denial of service (infinite loop) via a malformed ZIP archive, …EPSS 7.9%4 Aug 2008 5.0CVE-2006-6407F-prot antivirus vulnerabilityF-Prot Antivirus for Linux x86 Mail Servers 4.6.6 allows remote attackers to bypass virus detection by inserting invalid characters into base64 encod…EPSS 2.2%10 Dec 2006 4.3CVE-2012-1456Antivirus TAR parsers bypassed by appended ZIP fileMultiple antivirus products parse TAR archives in a way that lets a TAR file with an appended ZIP evade malware detection. An attacker can therefore …EPSS 100%analysed21 Mar 2012 4.3CVE-2012-1457Antivirus TAR parser malware detection bypass via oversized length fieldThe TAR file parser in numerous antivirus and anti-malware products mishandles a TAR archive entry whose length field exceeds the total TAR file size…EPSS 98%analysed21 Mar 2012 4.3CVE-2012-1459TAR parser malware detection bypass in multiple antivirus productsThe TAR file parser in dozens of antivirus products mishandles a TAR archive entry whose length field spans the entire entry plus part of the next en…EPSS 100%analysed21 Mar 2012 4.3CVE-2012-1460Gzip parser in multiple antivirus engines allows malware detection bypassThe Gzip file parser in several antivirus products mishandles .tar.gz archives containing stray bytes at the end, allowing malware to evade detection…EPSS 94%analysed21 Mar 2012

Source: NIST National Vulnerability Database (record CVE-2009-1783), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.