CVE-1999-1421

CVE-1999-1421 is a medium-severity vulnerability in N-base Nh208 with a CVSS 2.0 base score of 6.4. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Description

NBase switches NH208 and NH215 run a TFTP server which allows remote attackers to send software updates to modify the switch or cause a denial of service (crash) by guessing the target filenames, which have default names.

Frequently asked questions

What is CVE-1999-1421?
NBase switches NH208 and NH215 run a TFTP server which allows remote attackers to send software updates to modify the switch or cause a denial of service (crash) by guessing the target filenames, which have default names.
How severe is CVE-1999-1421?
CVE-1999-1421 has a CVSS 2.0 base score of 6.4, rated medium severity.
Is CVE-1999-1421 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (73rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-1999-1421?
CVE-1999-1421 primarily affects N-base Nh208. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-1999-1421?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-1999-1421 published?
CVE-1999-1421 was published on 1998-07-20 and last updated on 2026-06-16.

References

Affected products (2)