CVE-2006-6335

CVE-2006-6335 is a critical-severity vulnerability in Sophos Sophos Anti-virus with a CVSS 2.0 base score of 10.0. Its EPSS exploit-prediction score of 12% places it in the 96th percentile, indicating an elevated likelihood of exploitation.

Key facts

Description

Multiple buffer overflows in Sophos Anti-Virus scanning engine before 2.40 allow remote attackers to execute arbitrary code via (1) a SIT archive with a long filename that is not null-terminated, which triggers a heap-based overflow in veex.dll due to improper length calculation, and (2) a CPIO archive, with a long filename that is not null-terminated, which triggers a stack-based overflow in veex.dll.

Frequently asked questions

What is CVE-2006-6335?
Multiple buffer overflows in Sophos Anti-Virus scanning engine before 2.40 allow remote attackers to execute arbitrary code via (1) a SIT archive with a long filename that is not null-terminated, which triggers a heap-based overflow in veex.dll due to improper length calculation, and (2) a CPIO archive, with a long filename that is not null-terminated, which triggers a stack-based overflow in veex.dll.
How severe is CVE-2006-6335?
CVE-2006-6335 has a CVSS 2.0 base score of 10.0, rated critical severity.
Is CVE-2006-6335 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 12% (96th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2006-6335?
CVE-2006-6335 affects Sophos Sophos Anti-virus. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2006-6335?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2006-6335 published?
CVE-2006-6335 was published on 2006-12-12 and last updated on 2026-06-16.

References

Affected products (1)

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