Linksys WRT54GS and BEFW11S4 allows remote attackers to cause a denial of service (device…
Priority LOW 37Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · Complete
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA.
Summary
Linksys WRT54GS and BEFW11S4 allows remote attackers to cause a denial of service (device crash) via an IP packet with the same source and destination IPs and ports, and with the SYN flag set (aka LAND). NOTE: the provenance of this issue is unknown; the details are obtained solely from the BID.
Why it matters now
EPSS 0.01431 73rd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
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 · 8
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:h:linksys:befw11s4:1.4.2.7:*:*:*:*:*:*:* | 1.4.2.7 | Vulnerable | Linksys |
| cpe:2.3:h:linksys:befw11s4:1.4.3:*:*:*:*:*:*:* | 1.4.3 | Vulnerable | Linksys |
| cpe:2.3:h:linksys:befw11s4:1.43.3:*:*:*:*:*:*:* | 1.43.3 | Vulnerable | Linksys |
| cpe:2.3:h:linksys:befw11s4:1.44:*:*:*:*:*:*:* | 1.44 | Vulnerable | Linksys |
| cpe:2.3:h:linksys:befw11s4_v3:*:*:*:*:*:*:*:* | all versions | Vulnerable | Linksys |
| cpe:2.3:h:linksys:befw11s4_v4:*:*:*:*:*:*:*:* | all versions | Vulnerable | Linksys |
| cpe:2.3:h:linksys:wrt54gs:4.50.6:*:*:*:*:*:*:* | 4.50.6 | Vulnerable | Linksys |
| cpe:2.3:h:linksys:wrt54gs:4.70.6:*:*:*:*:*:*:* | 4.70.6 | Vulnerable | Linksys |
- cpe:2.3:h:linksys:befw11s4:1.4.2.7:*:*:*:*:*:*:* Versions 1.4.2.7 Vulnerable ·Linksys
- cpe:2.3:h:linksys:befw11s4:1.4.3:*:*:*:*:*:*:* Versions 1.4.3 Vulnerable ·Linksys
- cpe:2.3:h:linksys:befw11s4:1.43.3:*:*:*:*:*:*:* Versions 1.43.3 Vulnerable ·Linksys
- cpe:2.3:h:linksys:befw11s4:1.44:*:*:*:*:*:*:* Versions 1.44 Vulnerable ·Linksys
- cpe:2.3:h:linksys:befw11s4_v3:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·Linksys
- cpe:2.3:h:linksys:befw11s4_v4:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·Linksys
- cpe:2.3:h:linksys:wrt54gs:4.50.6:*:*:*:*:*:*:* Versions 4.50.6 Vulnerable ·Linksys
- cpe:2.3:h:linksys:wrt54gs:4.70.6:*:*:*:*:*:*:* Versions 4.70.6 Vulnerable ·Linksys
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2005-4257
- 2026-10-03 Alias added: GHSA-72fv-wfpw-6q2x
References
—
More Linksys Befw11s4 vulnerabilities
- TI-2002-01784 Buffer overflow in the Embedded HTTP server, as used in (1) D-Link DI-804 4.68, Dl-704… 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
- CVE-2005-4257 · CVE Program
- CVE-2005-4257 · NVD
- FIRST EPSS
- GHSA-72fv-wfpw-6q2x · GitHub Advisory Database · CC BY 4.0
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