How severe is CVE-2010-0478?

CVE-2010-0478 has a CVSS 2.0 base score of 9.3, rated critical severity.

Is CVE-2010-0478 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 67% (99th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2010-0478?

CVE-2010-0478 affects Microsoft Windows 2000. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2010-0478?

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-2010-0478 published?

CVE-2010-0478 was published on 2010-04-14 and last updated on 2026-06-16.

CVE-2010-0478

CVE-2010-0478 is a critical-severity vulnerability in Microsoft Windows 2000 with a CVSS 2.0 base score of 9.3. Its EPSS exploit-prediction score of 67% places it in the 99th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-119.

Key facts

Severity: Critical (CVSS 2.0 base score 9.3)
EPSS exploit prediction: 67% (99th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-119
Affected product: Microsoft Windows 2000
Published: 2010-04-14
Last modified: 2026-06-16

Description

Stack-based buffer overflow in nsum.exe in the Windows Media Unicast Service in Media Services for Microsoft Windows 2000 Server SP4 allows remote attackers to execute arbitrary code via crafted packets associated with transport information, aka "Media Services Stack-based Buffer Overflow Vulnerability."

Frequently asked questions

What is CVE-2010-0478?: Stack-based buffer overflow in nsum.exe in the Windows Media Unicast Service in Media Services for Microsoft Windows 2000 Server SP4 allows remote attackers to execute arbitrary code via crafted packets associated with transport information, aka "Media Services Stack-based Buffer Overflow Vulnerability."
How severe is CVE-2010-0478?: CVE-2010-0478 has a CVSS 2.0 base score of 9.3, rated critical severity.
Is CVE-2010-0478 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 67% (99th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2010-0478?: CVE-2010-0478 affects Microsoft Windows 2000. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2010-0478?: 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-2010-0478 published?: CVE-2010-0478 was published on 2010-04-14 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:o:microsoft:windows_2000:*:sp4:*:*:*:*:*:*

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