CVE-2005-3500

CVE-2005-3500 is a medium-severity vulnerability in Clam Anti-virus Clamav with a CVSS 2.0 base score of 5.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Description

The tnef_attachment function in tnef.c for Clam AntiVirus (ClamAV) before 0.87.1 allows remote attackers to cause a denial of service (infinite loop and memory exhaustion) via a crafted value in a CAB file that causes ClamAV to repeatedly scan the same block.

Frequently asked questions

What is CVE-2005-3500?
The tnef_attachment function in tnef.c for Clam AntiVirus (ClamAV) before 0.87.1 allows remote attackers to cause a denial of service (infinite loop and memory exhaustion) via a crafted value in a CAB file that causes ClamAV to repeatedly scan the same block.
How severe is CVE-2005-3500?
CVE-2005-3500 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2005-3500 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (89th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2005-3500?
CVE-2005-3500 primarily affects Clam Anti-virus Clamav. In total, 33 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2005-3500?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2005-3500 published?
CVE-2005-3500 was published on 2005-11-05 and last updated on 2026-06-16.

References

Affected products (33)

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