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CVE-2003-1250

Efficient Networks 5861 DSL router, when running firmware 5.3.80 configured to block incoming TCP...

5.0 Medium

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.

Exploit likelihood

1.81%Up 0.5 points since Feb 4, 2022
90%50%10%1%

What each source reports

NVD Score used 5.0

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.

Record
CVE-2003-1250
CVSS 2.0
5.0 MediumAV:N/AC:L/Au:N/C:N/I:N/A:P
Updated
2026-11-02
CVE List No score

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.

Record
CVE-2003-1250
Updated
2026-11-02
EUVDEUVD-2003-1240 No score

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.

Record
EUVD-2003-1240
Updated
2026-11-03
GitHub AdvisoriesGHSA-v447-3wq3-529v No score

Efficient Networks 5861 DSL router, when running firmware 5.3.80 configured to block incoming TCP...

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.

Record
GHSA-v447-3wq3-529v
Updated
2026-11-02

Affected products

History

History
RecordedChangedSources
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2003-1250 is a medium vulnerability (CVSS 5.0) in Efficient Networks 5861 Dsl Router, published December 31, 2003. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.81%, the 78th percentile. No source names a fixed version.

References

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