CVE-1999-1503

CVE-1999-1503 is a medium-severity vulnerability in Nfr 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

Network Flight Recorder (NFR) 1.5 and 1.6 allows remote attackers to cause a denial of service in nfrd (crash) via a TCP packet with a null header and data field.

Frequently asked questions

What is CVE-1999-1503?
Network Flight Recorder (NFR) 1.5 and 1.6 allows remote attackers to cause a denial of service in nfrd (crash) via a TCP packet with a null header and data field.
How severe is CVE-1999-1503?
CVE-1999-1503 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-1999-1503 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (66th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-1999-1503?
CVE-1999-1503 primarily affects Nfr. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-1999-1503?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-1999-1503 published?
CVE-1999-1503 was published on 1998-04-08 and last updated on 2026-06-16.

References

Affected products (2)