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Vulnerability record · CVE-2004-0640 · published 6 August 2004

CVE-2004-0640: Linux netkit vulnerability

Netkit · Linux Netkit

Format string vulnerability in the SSL_set_verify function in telnetd.c for SSLtelnet daemon (SSLtelnetd) 0.13 allows remote attackers to execute arbitrary code.

10.0 CVSS 2.0 High EPSS 4.5% · top 8.9%
10.0CVSS 2.0 base score
4.5%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
6References
16 Jun 2026Last modified by NVD

Description

Format string vulnerability in the SSL_set_verify function in telnetd.c for SSLtelnet daemon (SSLtelnetd) 0.13 allows remote attackers to execute arbitrary code.

AV:N/AC:L/Au:N/C:C/I:C/A:C

Affected products

2 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://www.debian.org/security/2004/dsa-529 PatchVendor Advisory
http://www.idefense.com/application/poi/display?id=114&type=vulnerabilities
https://exchange.xforce.ibmcloud.com/vulnerabilities/16653
http://www.debian.org/security/2004/dsa-529 PatchVendor Advisory
http://www.idefense.com/application/poi/display?id=114&type=vulnerabilities
https://exchange.xforce.ibmcloud.com/vulnerabilities/16653

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

10.0CVE-2001-0554Mit kerberos classic buffer overflow vulnerabilityBuffer overflow in BSD-based telnetd telnet daemon on various operating systems allows remote attackers to execute arbitrary commands via a set of op…EPSS 39%6.2CVE-2005-0178Linux netkit vulnerabilityRace condition in the setsid function in Linux before 2.6.8.1 allows local users to cause a denial of service (crash) and possibly access portions of…EPSS 0.36%

Source: NIST National Vulnerability Database (record CVE-2004-0640), CISA KEV, FIRST EPSS (scores of 2026-09-28). This page is refreshed as NVD updates the record.