CVE-2003-0251

CVE-2003-0251 is a medium-severity vulnerability in Nis Ypserv Nis Server 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

ypserv NIS server before 2.7 allows remote attackers to cause a denial of service via a TCP client request that does not respond to the server, which causes ypserv to block.

Frequently asked questions

What is CVE-2003-0251?
ypserv NIS server before 2.7 allows remote attackers to cause a denial of service via a TCP client request that does not respond to the server, which causes ypserv to block.
How severe is CVE-2003-0251?
CVE-2003-0251 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2003-0251 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (84th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2003-0251?
CVE-2003-0251 affects Nis Ypserv Nis Server. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2003-0251?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2003-0251 published?
CVE-2003-0251 was published on 2003-07-24 and last updated on 2026-06-16.

References

Affected products (1)