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CVE-2003-0225

26
FAUCET Score

CVE-2003-0225 describes a denial-of-service vulnerability in Microsoft IIS 4.0 and 5.0. The Response.AddHeader ASP function fails to limit memory allocation for headers, allowing remote attackers to craft large headers and exhaust system memory. This vulnerability has a CVSS score of 5.0 (medium severity) due to its network-based attack vector and potential for denial of service. While no public exploits or active exploitation are reported, its high FAUCET Risk Score suggests a significant potential impact.

Impacted Technologies

VendorProductVersion(s)CPE
4.0CPE matchmatch criteria
cpe:2.3:a:microsoft:internet_information_server:4.0:*:*:*:*:*:*:*
5.0CPE matchmatch criteria
cpe:2.3:a:microsoft:internet_information_services:5.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.0MEDIUM

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

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
29.48%
Probability of exploitation in next 30 days
EPSS Percentile
98.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.2948 is in the 98th percentile among its peer group of 23,723 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, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

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

Remediation

Remediation records are not available for this CVE.

References

marc.info
docs.microsoft.com / en-us/security-updates/securitybulletins/2003/ms03-018
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A373
aqtronix.com / Advisories/AQ-2003-01.txt