CVE-2005-2120

CVE-2005-2120 is a medium-severity vulnerability in Microsoft Windows 2000 with a CVSS 2.0 base score of 6.5. Its EPSS exploit-prediction score of 63% places it in the 99th percentile, indicating an elevated likelihood of exploitation.

Key facts

Description

Stack-based buffer overflow in the Plug and Play (PnP) service (UMPNPMGR.DLL) in Microsoft Windows 2000 SP4, and XP SP1 and SP2, allows remote or local authenticated attackers to execute arbitrary code via a large number of "\" (backslash) characters in a registry key name, which triggers the overflow in a wsprintfW function call.

Frequently asked questions

What is CVE-2005-2120?
Stack-based buffer overflow in the Plug and Play (PnP) service (UMPNPMGR.DLL) in Microsoft Windows 2000 SP4, and XP SP1 and SP2, allows remote or local authenticated attackers to execute arbitrary code via a large number of "\" (backslash) characters in a registry key name, which triggers the overflow in a wsprintfW function call.
How severe is CVE-2005-2120?
CVE-2005-2120 has a CVSS 2.0 base score of 6.5, rated medium severity.
Is CVE-2005-2120 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 63% (99th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2005-2120?
CVE-2005-2120 primarily affects Microsoft Windows 2000. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2005-2120?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2005-2120 published?
CVE-2005-2120 was published on 2005-10-13 and last updated on 2026-06-16.

References

Affected products (3)

More vulnerabilities in Microsoft Windows 2000

All CVEs affecting Microsoft Windows 2000 →