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CVE-2003-0003

57
FAUCET Score

CVE-2003-0003 describes a critical buffer overflow vulnerability in the RPC Locator service affecting Microsoft Windows NT 4.0, Windows 2000, and Windows XP. This flaw allows local attackers to execute arbitrary code by crafting a malicious RPC call with specific parameter information. With a CVSS score of 7.5, it presents a high risk due to its low attack complexity and potential for complete compromise of confidentiality, integrity, and availability. While not listed in CISA's KEV catalog, public exploit code exists, including entries in ExploitDB, though there is minimal community discussion or media coverage surrounding this older vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:a:microsoft:windows_2000_terminal_services:-:*:*:*:*:*:*:*
All Versions ImpactedCPE matchmatch criteria
cpe:2.3:o:microsoft:windows_2000:*:*:*:*:*:*:*:*
All Versions ImpactedCPE matchmatch criteria
cpe:2.3:o:microsoft:windows_2000:*:sp1:*:*:*:*:*:*
All Versions ImpactedCPE matchmatch criteria
cpe:2.3:o:microsoft:windows_2000:*:sp2:*:*:*:*:*:*
All Versions ImpactedCPE matchmatch criteria
cpe:2.3:o:microsoft:windows_2000:*:sp3:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

7.5HIGH

AV:N/AC:L/Au:N/C:P/I:P/A:P

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
6.4
CvssVersion
2.0

Exploit Intelligence

EPSS Score
43.39%
Probability of exploitation in next 30 days
EPSS Percentile
98.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
ExploitDB: EDB-5 · Apr 3, 2003
This CVE's current EPSS score of 0.4339 is in the 97th percentile among its peer group of 51,485 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

marc.info
Third Party Advisory
marc.info
Third Party Advisory
docs.microsoft.com / en-us/security-updates/securitybulletins/2003/ms03-001
exchange.xforce.ibmcloud.com / vulnerabilities/11132
Third Party AdvisoryVDB Entry
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A103
Third Party Advisory
cert.org / advisories/CA-2003-03.html
PatchThird Party AdvisoryUS Government Resource
kb.cert.org / vuls/id/610986
PatchThird Party AdvisoryUS Government Resource
securityfocus.com / bid/6666
Third Party AdvisoryVDB Entry