TI-2002-00105 Aliases CVE-2002-0109 GHSA-xgmp-mj76-c47c

Linksys EtherFast BEFN2PS4, BEFSR41, and BEFSR81 Routers, and possibly other products…

LOW 38Published 2002-03-15 · Updated 2026-10-09

Key facts

Attack vector: Network
Privileges required: None
User interaction: — Not recorded in CVSS 2.0
Attack complexity: Low
Impact type: —
Confidentiality · integrity · availability: Partial · None · Partial
Fix status: No fix listed

Attack profile from CVSS 2.0 · NVD. Fix status from CNA.

Summary

Linksys EtherFast BEFN2PS4, BEFSR41, and BEFSR81 Routers, and possibly other products, allow remote attackers to gain sensitive information and cause a denial of service via an SNMP query for the default community string "public," which causes the router to change its configuration and send SNMP trap information back to the system that initiated the query.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.01675 77th percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: Yes
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
—	—	all versions	—	No fix listed	CNA

— Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 3

CPE	Versions	Role	Vendor
cpe:2.3:h:linksys:befn2ps4:0.0:::::::*	0.0	Vulnerable	Linksys
cpe:2.3:h:linksys:befsr41:0.0:::::::*	0.0	Vulnerable	Linksys
cpe:2.3:h:linksys:befsr81::::::::	all versions	Vulnerable	Linksys

cpe:2.3:h:linksys:befn2ps4:0.0:*:*:*:*:*:*:* Versions 0.0 Vulnerable ·Linksys
cpe:2.3:h:linksys:befsr41:0.0:*:*:*:*:*:*:* Versions 0.0 Vulnerable ·Linksys
cpe:2.3:h:linksys:befsr81:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·Linksys

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2002-0109
2026-10-03 Alias added: GHSA-xgmp-mj76-c47c
2026-10-10 CISA SSVC decision points changed

References

Advisory 1

linksys-etherfast-default-snmp(7827)

Other 1

20020106 Linksys 'routers', SNMP issues

TI-2004-00522 DHCP on Linksys BEFSR11, BEFSR41, BEFSR81, and BEFSRU31 Cable/DSL Routers, firmware… CVSS 2.0MEDIUM 5.0
TI-2002-01247 Buffer overflow in the Web management interface in Linksys BEFW11S4 wireless access point… CVSS 2.0MEDIUM 5.0

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences