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Vulnerability record · CVE-2002-1312 · published 20 November 2002

CVE-2002-1312: Linksys befn2ps4 vulnerability

Linksys · Befn2ps4

Buffer overflow in the Web management interface in Linksys BEFW11S4 wireless access point router 2 and BEFSR11, BEFSR41, and BEFSRU31 EtherFast Cable/DSL routers with firmware before 1.43.3 with remote management enabled allows remote attackers to cause a denial of service (router crash) via a long password.

5.0 CVSS 2.0 Medium EPSS 2.0% · top 20.4%
5.0CVSS 2.0 base score
2.0%EPSS exploitation probability, 30 days
NoNot in CISA KEV
9Affected product versions listed by NVD
12References
16 Jun 2026Last modified by NVD

Description

Buffer overflow in the Web management interface in Linksys BEFW11S4 wireless access point router 2 and BEFSR11, BEFSR41, and BEFSRU31 EtherFast Cable/DSL routers with firmware before 1.43.3 with remote management enabled allows remote attackers to cause a denial of service (router crash) via a long password.

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

Affected products

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

References

LinkTags
http://archives.neohapsis.com/archives/bugtraq/2002-12/0022.html
http://www.idefense.com/application/poi/display?id=36&type=vulnerabilities&flashstatus=true
http://www.securityfocus.com/bid/6208 Patch
http://www.securityfocus.com/bid/6301
http://www1.corest.com/common/showdoc.php?idx=276&idxseccion=10
https://exchange.xforce.ibmcloud.com/vulnerabilities/10654
http://archives.neohapsis.com/archives/bugtraq/2002-12/0022.html
http://www.idefense.com/application/poi/display?id=36&type=vulnerabilities&flashstatus=true
http://www.securityfocus.com/bid/6208 Patch
http://www.securityfocus.com/bid/6301
http://www1.corest.com/common/showdoc.php?idx=276&idxseccion=10
https://exchange.xforce.ibmcloud.com/vulnerabilities/10654

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Related vulnerabilities

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

10.0CVE-2002-2159Linksys befsr11 vulnerabilityLinksys EtherFast Cable/DSL BEFSR11, BEFSR41 and BEFSRU31 with the firmware 1.42.7 upgrade installed opens TCP port 5678 for remote administration ev…EPSS 2.4%6.4CVE-2002-0109Linksys befn2ps4 vulnerabilityLinksys EtherFast BEFN2PS4, BEFSR41, and BEFSR81 Routers, and possibly other products, allow remote attackers to gain sensitive information and cause…EPSS 1.7%5.0CVE-2004-0580Linksys befcmu10 vulnerabilityDHCP on Linksys BEFSR11, BEFSR41, BEFSR81, and BEFSRU31 Cable/DSL Routers, firmware version 1.45.7, does not properly clear previously used buffer co…EPSS 8.0%5.0CVE-2002-1236Linksys befsr41 vulnerabilityThe remote management web server for Linksys BEFSR41 EtherFast Cable/DSL Router before firmware 1.42.7 allows remote attackers to cause a denial of s…EPSS 7.1%5.0CVE-2001-1117Linksys befsr41 vulnerabilityLinkSys EtherFast BEFSR41 Cable/DSL routers running firmware before 1.39.3 Beta allows a remote attacker to view administration and user passwords by…EPSS 1.8%

Source: NIST National Vulnerability Database (record CVE-2002-1312), CISA KEV, FIRST EPSS (scores of 2026-09-29). This page is refreshed as NVD updates the record.