CVE-2005-3303

CVE-2005-3303 is a high-severity vulnerability in Clam Anti-virus Clamav with a CVSS 2.0 base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Description

The FSG unpacker (fsg.c) in Clam AntiVirus (ClamAV) 0.80 through 0.87 allows remote attackers to cause "memory corruption" and execute arbitrary code via a crafted FSG 1.33 file.

Frequently asked questions

What is CVE-2005-3303?
The FSG unpacker (fsg.c) in Clam AntiVirus (ClamAV) 0.80 through 0.87 allows remote attackers to cause "memory corruption" and execute arbitrary code via a crafted FSG 1.33 file.
How severe is CVE-2005-3303?
CVE-2005-3303 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-2005-3303 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 7% (93rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2005-3303?
CVE-2005-3303 primarily affects Clam Anti-virus Clamav. In total, 11 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2005-3303?
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-2005-3303 published?
CVE-2005-3303 was published on 2005-11-05 and last updated on 2026-06-16.

References

Affected products (11)

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