CVE-2004-1636

CVE-2004-1636 is a critical-severity vulnerability in Net Integration Technologies Inc. Wvtftp 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

Heap-based buffer overflow in the WvTFTPServer::new_connection function in wvtftpserver.cc for WvTftp 0.9 allows remote attackers to execute arbitrary code via a long option string in a TFTP packet.

Frequently asked questions

What is CVE-2004-1636?
Heap-based buffer overflow in the WvTFTPServer::new_connection function in wvtftpserver.cc for WvTftp 0.9 allows remote attackers to execute arbitrary code via a long option string in a TFTP packet.
How severe is CVE-2004-1636?
CVE-2004-1636 has a CVSS 2.0 base score of 10.0, rated critical severity.
Is CVE-2004-1636 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 8% (94th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2004-1636?
CVE-2004-1636 affects Net Integration Technologies Inc. Wvtftp. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2004-1636?
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-2004-1636 published?
CVE-2004-1636 was published on 2004-10-26 and last updated on 2026-06-16.

References

Affected products (1)