CVE-1999-0226
CVE-1999-0226 is a critical-severity vulnerability in Microsoft Windows Nt with a CVSS 2.0 base score of 10.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-19.
Key facts
- Severity: Critical (CVSS 2.0 base score 10.0)
- EPSS exploit prediction: 6% (92nd percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-19
- Affected product: Microsoft Windows Nt
- Published:
- Last modified:
Description
Windows NT TCP/IP processes fragmented IP packets improperly, causing a denial of service.
Frequently asked questions
- What is CVE-1999-0226?
- Windows NT TCP/IP processes fragmented IP packets improperly, causing a denial of service.
- How severe is CVE-1999-0226?
- CVE-1999-0226 has a CVSS 2.0 base score of 10.0, rated critical severity.
- Is CVE-1999-0226 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 6% (92nd percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-1999-0226?
- CVE-1999-0226 affects Microsoft Windows Nt. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-1999-0226?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
- When was CVE-1999-0226 published?
- CVE-1999-0226 was published on 1999-01-01 and last updated on 2026-06-16.
References
Affected products (1)
- cpe:2.3:o:microsoft:windows_nt:-:*:*:*:*:*:*:*
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