How severe is CVE-2006-6458?

CVE-2006-6458 has a CVSS 2.0 base score of 7.8, rated high severity.

Is CVE-2006-6458 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (83rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2006-6458?

CVE-2006-6458 primarily affects Trend Micro Officescan. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2006-6458?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2006-6458 published?

CVE-2006-6458 was published on 2006-12-11 and last updated on 2026-06-16.

CVE-2006-6458

CVE-2006-6458 is a high-severity vulnerability in Trend Micro Officescan with a CVSS 2.0 base score of 7.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: High (CVSS 2.0 base score 7.8)
EPSS exploit prediction: 3% (83rd percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Trend Micro Officescan
Published: 2006-12-11
Last modified: 2026-06-16

Description

The Trend Micro scan engine before 8.320 for Windows and before 8.150 on HP-UX and AIX, as used in Trend Micro PC Cillin - Internet Security 2006, Office Scan 7.3, and Server Protect 5.58, allows remote attackers to cause a denial of service (CPU consumption and system hang) via a malformed RAR archive with an Archive Header section with the head_size and pack_size fields set to zero, which triggers an infinite loop.

Frequently asked questions

What is CVE-2006-6458?: The Trend Micro scan engine before 8.320 for Windows and before 8.150 on HP-UX and AIX, as used in Trend Micro PC Cillin - Internet Security 2006, Office Scan 7.3, and Server Protect 5.58, allows remote attackers to cause a denial of service (CPU consumption and system hang) via a malformed RAR archive with an Archive Header section with the head_size and pack_size fields set to zero, which triggers an infinite loop.
How severe is CVE-2006-6458?: CVE-2006-6458 has a CVSS 2.0 base score of 7.8, rated high severity.
Is CVE-2006-6458 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (83rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2006-6458?: CVE-2006-6458 primarily affects Trend Micro Officescan. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2006-6458?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2006-6458 published?: CVE-2006-6458 was published on 2006-12-11 and last updated on 2026-06-16.

References

Affected products (3)

cpe:2.3:a:trend_micro:officescan:7.3:*:*:*:*:*:*:*
cpe:2.3:a:trend_micro:pc_cillin_-_internet_security_2006:*:*:*:*:*:*:*:*
cpe:2.3:a:trend_micro:serverprotect:5.58:*:emc:*:*:*:*:*

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