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Vulnerability record · CVE-2006-5403 · published 19 October 2006

CVE-2006-5403: Symantec automated support assistant vulnerability

Symantec · Automated Support Assistant

Stack-based buffer overflow in an ActiveX control used in Symantec Automated Support Assistant, as used in Norton AntiVirus, Internet Security, and System Works 2005 and 2006, allows user-assisted remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via unspecified vectors.

5.1 CVSS 2.0 Medium EPSS 6.3% · top 6.6%
5.1CVSS 2.0 base score
6.3%EPSS exploitation probability, 30 days
NoNot in CISA KEV
4Affected product versions listed by NVD
20References
16 Jun 2026Last modified by NVD

Description

Stack-based buffer overflow in an ActiveX control used in Symantec Automated Support Assistant, as used in Norton AntiVirus, Internet Security, and System Works 2005 and 2006, allows user-assisted remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via unspecified vectors.

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

Affected products

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

References

Track CVE-2006-5403 inside VULONE

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Related vulnerabilities

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

10.0CVE-2007-1689Norton 2004 ActiveX control buffer overflow via ISAlertDataCOMThe ISAlertDataCOM ActiveX control in ISLALERT.DLL, shipped with Norton Personal Firewall 2004 and Norton Internet Security 2004, contains a buffer o…EPSS 65%analysed10.0CVE-2006-6490Supportsoft scriptrunner vulnerabilityMultiple buffer overflows in the SupportSoft (1) SmartIssue (tgctlsi.dll) and (2) ScriptRunner (tgctlsr.dll) ActiveX controls, as used by Symantec Au…EPSS 10%10.0CVE-2006-2630Symantec Antivirus and Client Security stack buffer overflowSymantec Antivirus 10.1 and Client Security 3.1 contain a stack-based buffer overflow that remote attackers can trigger through unspecified attack ve…EPSS 74%analysed10.0CVE-2005-2017Symantec norton antivirus vulnerabilitySymantec AntiVirus 9 Corporate Edition allows local users to gain privileges via the "Scan for viruses" option, which launches a help window with rai…EPSS 1.7%10.0CVE-2004-0487Symantec norton antivirus vulnerabilityA certain ActiveX control in Symantec Norton AntiVirus 2004 allows remote attackers to cause a denial of service (resource consumption) and possibly …EPSS 6.4%10.0CVE-2004-0444Symantec client firewall vulnerabilityMultiple vulnerabilities in SYMDNS.SYS for Symantec Norton Internet Security and Professional 2002 through 2004, Norton Personal Firewall 2002 throug…EPSS 13%10.0CVE-2000-0793Novell client vulnerabilityNorton AntiVirus 5.00.01C with the Novell Netware client does not properly restart the auto-protection service after the first user has logged off of…EPSS 2.0%9.8CVE-2016-3645Symantec norton security vulnerabilityInteger overflow in the TNEF unpacker in the AntiVirus Decomposer engine in Symantec Advanced Threat Protection (ATP); Symantec Data Center Security:…EPSS 25%

Source: NIST National Vulnerability Database (record CVE-2006-5403), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.