CVE-2007-0856

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.

Published: 2007-02-08 Last update: 2026-04-23 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2007-0856 is rated Moderate Risk (49.3/100): CVSS High severity, with medium exploitation likelihood (EPSS 0.95%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2007-0856

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.15% 0.95% +0.80%
2 2025-09-27 0.12% 0.15% +0.03%
3 2025-03-17 — 0.12% —

Full EPSS history (7 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2007-0856

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.2 2.0 HIGH
AV:L/AC:L/Au:N/C:C/I:C/A:C Click to expand
Access vector (AV:L)
Requires local access to the target system.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:C)
Complete confidentiality impact.
Integrity impact (I:C)
Complete integrity impact.
Availability impact (A:C)
Complete availability impact.
 3.9 10.0 [email protected]

Weakness enumeration for CVE-2007-0856

Affected software / configurations for CVE-2007-0856

Vendor Product Version Raw CPE
trend_micro client-server-messaging_security 3.5 cpe:2.3:a:trend_micro:client-server-messaging_security:3.5:*:smb:*:*:*:*:*
trend_micro damage_cleanup_services 3.2 cpe:2.3:a:trend_micro:damage_cleanup_services:3.2:*:*:*:*:*:*:*
trend_micro pc-cillin_internet_security 2007 cpe:2.3:a:trend_micro:pc-cillin_internet_security:2007:*:*:*:*:*:*:*
trend_micro tmcomm.sys 1.5.1052 cpe:2.3:a:trend_micro:tmcomm.sys:1.5.1052:*:*:*:*:*:*:*
trend_micro trend_micro_antirootkit_common_module — cpe:2.3:a:trend_micro:trend_micro_antirootkit_common_module:*:*:*:*:*:*:*:*
trend_micro trend_micro_antispyware 3.0_sp2 cpe:2.3:a:trend_micro:trend_micro_antispyware:3.0_sp2:*:enterprise:*:*:*:*:*
trend_micro trend_micro_antispyware 3.2_sp1 cpe:2.3:a:trend_micro:trend_micro_antispyware:3.2_sp1:*:smb:*:*:*:*:*
trend_micro trend_micro_antispyware 3.5 cpe:2.3:a:trend_micro:trend_micro_antispyware:3.5:*:consumer:*:*:*:*:*
trend_micro trend_micro_antivirus 2007 cpe:2.3:a:trend_micro:trend_micro_antivirus:2007:*:*:*:*:*:*:*
trend_micro vsapini.sys 3.320.1003 cpe:2.3:a:trend_micro:vsapini.sys:3.320.1003:*:*:*:*:*:*:*

References for CVE-2007-0856

cvelogic Threat Intelligence