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CVE-2003-0345

35
FAUCET Score

CVE-2003-0345 describes a critical buffer overflow vulnerability in the Server Message Block (SMB) functionality of Microsoft Windows XP, 2000, and NT. This flaw allows unauthenticated remote attackers to trigger a denial of service and potentially execute arbitrary code by sending a malformed SMB packet with an undersized buffer length. With a CVSS score of 7.5 and a FAUCET Risk Score of 97/100, this vulnerability is highly severe, requiring no authentication and having low attack complexity. Despite its age and severity, there is no public exploit intelligence (Metasploit, Nuclei, ExploitDB) and minimal community discussion or media coverage, suggesting it is not actively exploited in the wild.

Impacted Technologies

VendorProductVersion(s)CPE
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:*:*:*:*:*:*
4.0CPE matchmatch criteria
cpe:2.3:o:microsoft:windows_nt:4.0:*:enterprise_server:*:*:*:*:*

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
34.65%
Probability of exploitation in next 30 days
EPSS Percentile
98.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.3465 is in the 97th percentile among its peer group of 51,506 CVEs.

Social Chatter

No social media mentions found for this CVE.

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

docs.microsoft.com / en-us/security-updates/securitybulletins/2003/ms03-024
secunia.com / advisories/9225
securitytracker.com / id
exchange.xforce.ibmcloud.com / vulnerabilities/12544
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A118
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A146
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A3391
kb.cert.org / vuls/id/337764
US Government Resource
securityfocus.com / bid/8152
PatchVendor Advisory