How severe is CVE-2007-4277?

CVE-2007-4277 has a CVSS 2.0 base score of 6.6, rated medium severity.

Is CVE-2007-4277 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (31st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2007-4277?

CVE-2007-4277 primarily affects Trend Micro Pc-cillin Internet Security 2007. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2007-4277?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2007-4277 published?

CVE-2007-4277 was published on 2007-10-30 and last updated on 2026-06-16.

CVE-2007-4277

CVE-2007-4277 is a medium-severity vulnerability in Trend Micro Pc-cillin Internet Security 2007 with a CVSS 2.0 base score of 6.6. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-119.

Key facts

Severity: Medium (CVSS 2.0 base score 6.6)
EPSS exploit prediction: 0% (31st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-119
Affected product: Trend Micro Pc-cillin Internet Security 2007
Published: 2007-10-30
Last modified: 2026-06-16

Description

The Trend Micro AntiVirus scan engine before 8.550-1001, as used in Trend Micro PC-Cillin Internet Security 2007, and Tmxpflt.sys 8.320.1004 and 8.500.0.1002, has weak permissions (Everyone:Write) for the \\.\Tmfilter device, which allows local users to send arbitrary content to the device via the IOCTL functionality. NOTE: this can be leveraged for privilege escalation by exploiting a buffer overflow in the handler for IOCTL 0xa0284403.

Frequently asked questions

What is CVE-2007-4277?: The Trend Micro AntiVirus scan engine before 8.550-1001, as used in Trend Micro PC-Cillin Internet Security 2007, and Tmxpflt.sys 8.320.1004 and 8.500.0.1002, has weak permissions (Everyone:Write) for the \\.\Tmfilter device, which allows local users to send arbitrary content to the device via the IOCTL functionality. NOTE: this can be leveraged for privilege escalation by exploiting a buffer overflow in the handler for IOCTL 0xa0284403.
How severe is CVE-2007-4277?: CVE-2007-4277 has a CVSS 2.0 base score of 6.6, rated medium severity.
Is CVE-2007-4277 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (31st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2007-4277?: CVE-2007-4277 primarily affects Trend Micro Pc-cillin Internet Security 2007. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2007-4277?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2007-4277 published?: CVE-2007-4277 was published on 2007-10-30 and last updated on 2026-06-16.

References

Affected products (2)

cpe:2.3:a:trend_micro:pc-cillin_internet_security_2007:*:*:*:*:*:*:*:*
cpe:2.3:a:trend_micro:scan_engine:*:*:*:*:*:*:*:*

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