Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2003-0533

84
FAUCET Score

CVE-2003-0533 describes a critical stack-based buffer overflow in the LSASRV.DLL component of Microsoft Windows, affecting multiple versions including NT 4.0, 2000, XP, and Server 2003. This vulnerability allows remote attackers to execute arbitrary code by crafting a malicious packet that causes the DsRolerUpgradeDownlevelServer function to create excessively long debug entries. With a CVSS score of 7.5 and a FAUCET Risk Score of 99/100, it presents a high severity risk due to its network-based attack vector and potential for complete compromise (confidentiality, integrity, availability). The vulnerability was notably exploited by the Sasser worm and has publicly available exploit code, including Metasploit modules and ExploitDB entries, indicating its widespread and historical exploitation.

Impacted Technologies

VendorProductVersion(s)CPE
All Versions ImpactedCPE matchmatch criteria
cpe:2.3:a:microsoft:netmeeting:*:*:*:*:*:*:*:*
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:*:sp4:*:fr:*:*:*:*
r2CPE matchmatch criteria
cpe:2.3:o:microsoft:windows_2003_server:r2:*:*:*:*:*:*:*
All Versions ImpactedCPE matchmatch criteria
cpe:2.3:o:microsoft:windows_98:*:gold:*:*:*:*:*:*

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
85.65%
Probability of exploitation in next 30 days
EPSS Percentile
99.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
Metasploit: MS04-011 Microsoft LSASS Service DsRolerUpgradeDownlevelServer Overflow · Apr 13, 2004
ExploitDB: EDB-16368 · Jul 3, 2010
This CVE's current EPSS score of 0.8565 is in the 100th percentile among its peer group of 51,466 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

lists.grok.org.uk / pipermail/full-disclosure/2004-April/020069.html
marc.info
docs.microsoft.com / en-us/security-updates/securitybulletins/2004/ms04-011
exchange.xforce.ibmcloud.com / vulnerabilities/15699
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A883
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A898
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A919
ciac.org / ciac/bulletins/o-114.shtml
eeye.com / html/Research/Advisories/AD20040413C.html
kb.cert.org / vuls/id/753212
PatchThird Party AdvisoryUS Government Resource
securityfocus.com / bid/10108
us-cert.gov / cas/techalerts/TA04-104A.html
Third Party AdvisoryUS Government Resource