CVE-2006-3961Antispyware Memory Corruption
Buffer overflow in McSubMgr ActiveX control (mcsubmgr.dll) in McAfee Security Center 6.0.23 for Internet Security Suite 2006, Wireless Home Network Security, Personal Firewall Plus, VirusScan, Privacy Service, SpamKiller, AntiSpyware, and QuickClean allows remote user-assisted…
Published Aug 1, 2006 · Updated Apr 15, 2026
Key Facts
Routine patching- CVE-2006-3961 is a medium-severity vulnerability (CVSS 6.8 v2) affecting Antispyware (Mcafee), Internet Security Suite (Mcafee), Personal Firewall Plus (Mcafee) and 6 more products.
- It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
- EPSS estimates a 34% probability of exploitation in the next 30 days.
- No fixed version is listed yet; check the vendor advisory for mitigations.
- Brandefense priority: routine patching, as no exploitation is known and its severity is moderate or low.
Scores
CVSS v2
6.8
AV:N/AC:M/Au:N/C:P/I:P/A:P
EPSS (30-day exploit likelihood)
34%
Higher than 98.4% of all scored CVEs
Exploit maturity
Weaponized
ATLAS score
48/100
Publication score, see How it works
Exploitation Verdict
KEV listed
Not listed
Federal due date
None
No federal due date
Ransomware use
Not reported
Attributed actors
None named
Exploit & Defence Guidance
Exploit maturity
Weaponized
Public exploit code
2
Proof-of-concept links
In-the-wild evidence
0
Reports of active use
Advisories And Exploit References
- advisoryADV-2006-3096
- patch21264
- patch19265
Description
Buffer overflow in McSubMgr ActiveX control (mcsubmgr.dll) in McAfee Security Center 6.0.23 for Internet Security Suite 2006, Wireless Home Network Security, Personal Firewall Plus, VirusScan, Privacy Service, SpamKiller, AntiSpyware, and QuickClean allows remote user-assisted attackers to execute arbitrary commands via long string parameters, which are later used in vsprintf.
Affected Products
25 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| AntispywareMcafee | 2005, 2006 | n/a |
| Internet Security SuiteMcafee | 2004, 2005, 2006 | n/a |
| Personal Firewall PlusMcafee | 2004, 2005, 2006 | n/a |
| Privacy ServiceMcafee | 2004, 2005, 2006 | n/a |
| QuickcleanMcafee | 2004, 2005, 2006 | n/a |
Timeline
Publicly disclosed
Aug 1, 2006
Last updated
Apr 15, 2026
Weakness Type
- CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer
References
- advisoryADV-2006-3096
- patch21264
- patch19265
- exploitMSF mcafee_mcsubmgr_vsprintf.rb
- exploitExploitDB-16510
FAQ
Common Questions.
Buffer overflow in McSubMgr ActiveX control (mcsubmgr.dll) in McAfee Security Center 6.0.23 for Internet Security Suite 2006, Wireless Home Network Security, Personal Firewall Plus, VirusScan, Privacy Service, SpamKiller, AntiSpyware, and QuickClean allows remote user-assisted attackers to execute arbitrary commands v…
Affected: Antispyware (Mcafee) versions 2005, 2006; Internet Security Suite (Mcafee) versions 2004, 2005, 2006; Personal Firewall Plus (Mcafee) versions 2004, 2005, 2006, among others. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: routine patching, as no exploitation is known and its severity is moderate or low.
Is CVE-2006-3961 On Your Attack Surface?
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