What’s Vulnerable › Vulnerabilities

CVE-2006-3840

• Severity: medium (CVSS 5.0 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2006-07-27 · updated 2026-06-16
• Weakness: CWE-399

Description

The SMB Mailslot parsing functionality in PAM in multiple ISS products with XPU (24.39/1.78/epj/x.x.x.1780), including Proventia A, G, M, Server, and Desktop, BlackICE PC and Server Protection 3.6, and RealSecure 7.0, allows remote attackers to cause a denial of service (infinite loop) via a crafted SMB packet that is not properly handled by the SMB_Mailslot_Heap_Overflow decode.

Affected products

• ISS Blackice Pc Protection: 3.6cpk
• ISS Blackice Server Protection: 3.6cpk
• ISS Proventia A Series Xpu: all versions
• ISS Proventia Desktop: 8.0.675.1790, 8.0.812.1790
• ISS Proventia G Series Xpu: all versions
• ISS Proventia M Series Xpu: all versions
• ISS Proventia Server: 1.0.914.1880
• ISS Realsecure Desktop: 7.0epk
• ISS Realsecure Network: 7.0
• ISS Realsecure Server Sensor: 7.0

References

• http://secunia.com/advisories/21219
• http://securitytracker.com/id?1016590
• http://securitytracker.com/id?1016591
• http://securitytracker.com/id?1016592
• http://www.nsfocus.com/english/homepage/research/0607.htm
• http://www.securityfocus.com/archive/1/441278/100/0/threaded
• http://www.securityfocus.com/bid/19178
• http://www.vupen.com/english/advisories/2006/2996
• http://xforce.iss.net/xforce/alerts/id/230
• https://exchange.xforce.ibmcloud.com/vulnerabilities/27965
• https://iss.custhelp.com/cgi-bin/iss.cfg/php/enduser/std_adp.php?p_faqid=3630
• http://secunia.com/advisories/21219

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