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CVE-2007-0856

• Severity: high (CVSS 7.2 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.0% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2007-02-08 · updated 2026-06-16

Description

TmComm.sys 1.5.0.1052 in the Trend Micro Anti-Rootkit Common Module (RCM), with the VsapiNI.sys 3.320.0.1003 scan engine, as used in Trend Micro PC-cillin Internet Security 2007, Antivirus 2007, Anti-Spyware for SMB 3.2 SP1, Anti-Spyware for Consumer 3.5, Anti-Spyware for Enterprise 3.0 SP2, Client / Server / Messaging Security for SMB 3.5, Damage Cleanup Services 3.2, and possibly other products, assigns Everyone write permission for the \\.\TmComm DOS device interface, which allows local users to access privileged IOCTLs and execute arbitrary code or overwrite arbitrary memory in the kernel context.

Affected products

• Trend Micro Client-Server-Messaging Security: 3.5
• Trend Micro Damage Cleanup Services: 3.2
• Trend Micro Pc-Cillin Internet Security: 2007
• Trend Micro Tmcomm.Sys: 1.5.1052
• Trend Micro Antirootkit Common Module: all versions
• Trend Micro Antispyware: 3.0_sp2, 3.2_sp1, 3.5
• Trend Micro Antivirus: 2007
• Trend Micro Vsapini.Sys: 3.320.1003

References

• http://esupport.trendmicro.com/support/viewxml.do?ContentID=EN-1034432&id=EN-1034432
• http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=469
• http://osvdb.org/33039
• http://secunia.com/advisories/24069
• http://securitytracker.com/id?1017604
• http://securitytracker.com/id?1017605
• http://securitytracker.com/id?1017606
• http://www.kb.cert.org/vuls/id/282240
• http://www.kb.cert.org/vuls/id/666800
• http://www.securityfocus.com/bid/22448
• http://www.vupen.com/english/advisories/2007/0521
• https://exchange.xforce.ibmcloud.com/vulnerabilities/32353

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