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CVE-1999-1055

Microsoft Excel 97 does not warn the user before executing worksheet functions, which could allow attackers to execute arbitrary commands by using the CALL function to execute a malicious DLL, aka the Excel "CALL Vulnerability."

Published: Dec 31, 1999 Modified: Jun 16, 2026

CVSS Metrics

Affected Products (1)

Vendor Product Version
microsoft excel 97

GitHub Security Advisory GHSA-cx75-p9pm-2q97

Microsoft Excel 97 does not warn the user before executing worksheet functions, which could allow...

Risk Scores

CVSS Score 7.5 / 10
EPSS Score 6.89%

Top 7% most likely to be exploited

Threat Score 32.1 / 100

Data Sources

NVD EPSS GitHub