CVE-2002-1312: Linksys BEFN2PS4

Medium severity, CVSS 5.0. EPSS: 2% chance of exploitation in the next 30 days.

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.

Affected products

• Linksys BEFN2PS4: version 1.42.7 only
• Linksys BEFSR11: version 1.42.7 only; version 1.43 only
• Linksys BEFSR41: version 1.42.7 only; version 1.43 only
• Linksys BEFSR81: version 2.42.7.1 only
• Linksys BEFSRU31: version 1.42.7 only; version 1.43 only
• Linksys BEFSX41: version 1.42.7 only
• Linksys BEFVP41: version 1.42.7 only
• Linksys BEFW11S4: version 1.4.2.7 only; version 1.4.3 only
• Linksys HPRO200: version 1.42.7 only

Published 2002-11-20. Last modified 2026-06-16.