How severe is CVE-1999-0288?

CVE-1999-0288 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-1999-0288 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 21% (97th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-1999-0288?

CVE-1999-0288 primarily affects Microsoft Windows Nt. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-1999-0288?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-1999-0288 published?

CVE-1999-0288 was published on 1998-08-01 and last updated on 2026-06-16.

CVE-1999-0288

CVE-1999-0288 is a medium-severity vulnerability in Microsoft Windows Nt with a CVSS 2.0 base score of 5.0. Its EPSS exploit-prediction score of 21% places it in the 97th percentile, indicating an elevated likelihood of exploitation.

Key facts

Severity: Medium (CVSS 2.0 base score 5.0)
EPSS exploit prediction: 21% (97th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Microsoft Windows Nt
Published: 1998-08-01
Last modified: 2026-06-16

Description

The WINS server in Microsoft Windows NT 4.0 before SP4 allows remote attackers to cause a denial of service (process termination) via invalid UDP frames to port 137 (NETBIOS Name Service), as demonstrated via a flood of random packets.

Frequently asked questions

What is CVE-1999-0288?: The WINS server in Microsoft Windows NT 4.0 before SP4 allows remote attackers to cause a denial of service (process termination) via invalid UDP frames to port 137 (NETBIOS Name Service), as demonstrated via a flood of random packets.
How severe is CVE-1999-0288?: CVE-1999-0288 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-1999-0288 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 21% (97th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-1999-0288?: CVE-1999-0288 primarily affects Microsoft Windows Nt. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-1999-0288?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-1999-0288 published?: CVE-1999-0288 was published on 1998-08-01 and last updated on 2026-06-16.

References

Affected products (4)

cpe:2.3:o:microsoft:windows_nt:4.0:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_nt:4.0:sp1:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_nt:4.0:sp2:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_nt:4.0:sp3:*:*:*:*:*:*

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