CVE-2003-1250

CVE-2003-1250 is a medium-severity vulnerability in Efficient Networks 5861 Dsl Router with a CVSS 2.0 base score of 5.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Description

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.

Frequently asked questions

What is CVE-2003-1250?
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.
How severe is CVE-2003-1250?
CVE-2003-1250 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2003-1250 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (76th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2003-1250?
CVE-2003-1250 affects Efficient Networks 5861 Dsl Router. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2003-1250?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2003-1250 published?
CVE-2003-1250 was published on 2003-12-31 and last updated on 2026-06-16.

References

Affected products (1)