Efficient Networks 5861 DSL router, when running firmware 5.3.80 configured to block…
Priority LOW 26Published · 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 · Partial
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA.
Summary
Efficient Networks 5861 DSL router, when running firmware 5.3.80 configured to block incoming TCP SYN, packets allows remote attackers to cause a denial of service (crash) via a flood of TCP SYN packets to the WAN interface using a port scanner such as nmap.
Why it matters now
EPSS 0.01809 78th 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 · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:h:efficient_networks:5861_dsl_router:5.3.80_firmware:*:*:*:*:*:*:* | 5.3.80_firmware | Vulnerable | Efficient Networks |
- cpe:2.3:h:efficient_networks:5861_dsl_router:5.3.80_firmware:*:*:*:*:*:*:* Versions 5.3.80_firmware Vulnerable ·Efficient Networks
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2003-1250
- 2026-10-03 Alias added: GHSA-v447-3wq3-529v
References
Sources
- CVE-2003-1250 · CVE Program
- CVE-2003-1250 · NVD
- FIRST EPSS
- GHSA-v447-3wq3-529v · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences