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CVE-2003-0809

48
FAUCET Score

CVE-2003-0809 describes a critical vulnerability in Microsoft Internet Explorer versions 5.01 through 6.0, where improper handling of object tags during XML data binding allows remote attackers to execute arbitrary code via malicious HTML email or web pages. This vulnerability carries a high CVSS score of 7.5, indicating a severe risk with network-based attacks requiring low complexity and no authentication, potentially leading to full compromise of confidentiality, integrity, and availability. While not currently listed in CISA's KEV catalog, exploit code is publicly available on ExploitDB, and the vulnerability has garnered significant community discussion, suggesting its potential for exploitation.

Impacted Technologies

VendorProductVersion(s)CPE
6.0CPE matchmatch criteria
cpe:2.3:a:microsoft:ie:6.0:sp1:*:*:*:*:*:*
5.0.1CPE matchmatch criteria
cpe:2.3:a:microsoft:internet_explorer:5.0.1:*:*:*:*:*:*:*
5.0.1CPE matchmatch criteria
cpe:2.3:a:microsoft:internet_explorer:5.0.1:sp1:*:*:*:*:*:*
5.0.1CPE matchmatch criteria
cpe:2.3:a:microsoft:internet_explorer:5.0.1:sp2:*:*:*:*:*:*
5.0.1CPE matchmatch criteria
cpe:2.3:a:microsoft:internet_explorer:5.0.1: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
26.67%
Probability of exploitation in next 30 days
EPSS Percentile
97.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
ExploitDB: EDB-23122 · Sep 8, 2003
This CVE's current EPSS score of 0.2667 is in the 96th 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

docs.microsoft.com / en-us/security-updates/securitybulletins/2003/ms03-040
exchange.xforce.ibmcloud.com / vulnerabilities/13300
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A123
osvdb.org / 7887
securityfocus.com / bid/8565
ExploitPatchVendor Advisory