CVE-2006-3456

Norton Antivirus vulnerability

CVSS

8.5

EPSS

3.9%

EPSS pct

89th

Exploited

No known

The Symantec NAVOPTS.DLL ActiveX control (aka Symantec.Norton.AntiVirus.NAVOptions) 12.2.0.13, as used in Norton AntiVirus, Internet Security, and System Works 2005 and 2006, is designed for use only in application-embedded web browsers, which allows remote attackers to "crash the control" via unspecified vectors related to content on a web site, and place Internet Explorer into a "defunct state" in which remote attackers can execute arbitrary code in addition to other Symantec ActiveX controls, regardless of whether they are marked safe for scripting. NOTE: this CVE was inadvertently used for an E-mail Auto-Protect issue, but that issue has been assigned CVE-2007-3771.

Affected vendor

Symantec

Affected product

Norton Antivirus

CVSS vector

AV:N/AC:M/Au:S/C:C/I:C/A:C

Weakness type (CWE)

CWE-94 — Code Injection

Published

2007-05-11

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, medium attack complexity, requiring single-factor authentication. Successful exploitation leads to complete impact to confidentiality, complete impact to integrity, complete impact to availability.

Its EPSS score of 3.9% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 89% of all scored CVEs.

Check your external exposure to CVE-2006-3456

Confirm whether Symantec Norton Antivirus is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2006-3456.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2006-3456

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2006-3456 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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