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CVE-2003-0821

27
FAUCET Score

CVE-2003-0821 describes a critical vulnerability in Microsoft Excel 97, 2000, and 2002, allowing remote attackers to execute arbitrary code. This is achieved by crafting a malicious XLM (Excel 4) macro within a spreadsheet that circumvents the macro security model. With a CVSS score of 7.5, it represents a high-severity risk, requiring no authentication and having low attack complexity, potentially leading to partial confidentiality, integrity, and availability compromise. Despite its age and severity, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
97CPE matchmatch criteria
cpe:2.3:a:microsoft:word:97:*:*:*:*:*:*:*
97CPE matchmatch criteria
cpe:2.3:a:microsoft:word:97:*:*:ja:*:*:*:*
97CPE matchmatch criteria
cpe:2.3:a:microsoft:word:97:*:*:ko:*:*:*:*
97CPE matchmatch criteria
cpe:2.3:a:microsoft:word:97:*:*:zh:*:*:*:*
97CPE matchmatch criteria
cpe:2.3:a:microsoft:word:97:sr1:*:*:*:*:*:*

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
18.98%
Probability of exploitation in next 30 days
EPSS Percentile
97.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.1898 is in the 96th percentile among its peer group of 51,551 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/ms03-050
exchange.xforce.ibmcloud.com / vulnerabilities/13681
Third Party AdvisoryVDB Entry
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A636
Third Party Advisory
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A675
Third Party Advisory
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A695
Third Party Advisory
securityfocus.com / bid/9010
Third Party AdvisoryVDB Entry