How severe is CVE-2009-1924?

CVE-2009-1924 has a CVSS 2.0 base score of 9.3, rated critical severity.

Is CVE-2009-1924 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 9% (95th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2009-1924?

CVE-2009-1924 primarily affects Microsoft Windows 2000. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2009-1924?

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-2009-1924 published?

CVE-2009-1924 was published on 2009-08-12 and last updated on 2026-06-16.

CVE-2009-1924

CVE-2009-1924 is a critical-severity vulnerability in Microsoft Windows 2000 with a CVSS 2.0 base score of 9.3. 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-189.

Key facts

Severity: Critical (CVSS 2.0 base score 9.3)
EPSS exploit prediction: 9% (95th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-189
Affected product: Microsoft Windows 2000
Published: 2009-08-12
Last modified: 2026-06-16

Description

Integer overflow in the Windows Internet Name Service (WINS) component for Microsoft Windows 2000 SP4 allows remote WINS replication partners to execute arbitrary code via crafted data structures in a packet, aka "WINS Integer Overflow Vulnerability."

Frequently asked questions

What is CVE-2009-1924?: Integer overflow in the Windows Internet Name Service (WINS) component for Microsoft Windows 2000 SP4 allows remote WINS replication partners to execute arbitrary code via crafted data structures in a packet, aka "WINS Integer Overflow Vulnerability."
How severe is CVE-2009-1924?: CVE-2009-1924 has a CVSS 2.0 base score of 9.3, rated critical severity.
Is CVE-2009-1924 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 9% (95th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2009-1924?: CVE-2009-1924 primarily affects Microsoft Windows 2000. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2009-1924?: 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-2009-1924 published?: CVE-2009-1924 was published on 2009-08-12 and last updated on 2026-06-16.

References

Affected products (4)

cpe:2.3:o:microsoft:windows_2000:*:sp4:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_2003_server:-:sp2:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_2003_server:-:sp2:itanium:*:*:*:*:*
cpe:2.3:o:microsoft:windows_2003_server:-:sp2:x64:*:*:*:*:*

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