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Vulnerability record · CVE-2002-0423 · published 12 August 2002

CVE-2002-0423: Efingerd vulnerability

EEfingerd · Efingerd

Buffer overflow in efingerd 1.5 and earlier, and possibly up to 1.61, allows remote attackers to cause a denial of service and possibly execute arbitrary code via a finger request from an IP address with a long hostname that is obtained via a reverse DNS lookup.

10.0 CVSS 2.0 High EPSS 5.3% · top 7.7%
10.0CVSS 2.0 base score
5.3%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
8References
16 Jun 2026Last modified by NVD

Description

Buffer overflow in efingerd 1.5 and earlier, and possibly up to 1.61, allows remote attackers to cause a denial of service and possibly execute arbitrary code via a finger request from an IP address with a long hostname that is obtained via a reverse DNS lookup.

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

Affected products

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

References

LinkTags
http://archives.neohapsis.com/archives/bugtraq/2002-03/0050.html
http://melkor.dnp.fmph.uniba.sk/~garabik/efingerd/efingerd_1.5.tar.gz
http://www.iss.net/security_center/static/8380.php PatchVendor Advisory
http://www.securityfocus.com/bid/4239 Vendor Advisory
http://archives.neohapsis.com/archives/bugtraq/2002-03/0050.html
http://melkor.dnp.fmph.uniba.sk/~garabik/efingerd/efingerd_1.5.tar.gz
http://www.iss.net/security_center/static/8380.php PatchVendor Advisory
http://www.securityfocus.com/bid/4239 Vendor Advisory

Track CVE-2002-0423 inside VULONE

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Related vulnerabilities

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

4.6CVE-2002-0424Efingerd vulnerabilityefingerd 1.61 and earlier, when configured without the -u option, executes .efingerd files as the efingerd user (typically "nobody"), which allows lo…EPSS 0.33%

Source: NIST National Vulnerability Database (record CVE-2002-0423), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.