CVE-2000-0343

CVE-2000-0343 is a critical-severity vulnerability in Brecht Claerhout Sniffit with a CVSS 2.0 base score of 10.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Description

Buffer overflow in Sniffit 0.3.x with the -L logging option enabled allows remote attackers to execute arbitrary commands via a long MAIL FROM mail header.

Frequently asked questions

What is CVE-2000-0343?
Buffer overflow in Sniffit 0.3.x with the -L logging option enabled allows remote attackers to execute arbitrary commands via a long MAIL FROM mail header.
How severe is CVE-2000-0343?
CVE-2000-0343 has a CVSS 2.0 base score of 10.0, rated critical severity.
Is CVE-2000-0343 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 6% (92nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2000-0343?
CVE-2000-0343 primarily affects Brecht Claerhout Sniffit. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2000-0343?
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-2000-0343 published?
CVE-2000-0343 was published on 2000-05-02 and last updated on 2026-06-16.

References

Affected products (2)