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Vulnerability record · CVE-1999-1055 · published 31 December 1999

CVE-1999-1055: Microsoft excel vulnerability

Microsoft · Excel

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."

7.5 CVSS 2.0 High EPSS 7.0% · top 6.0%
7.5CVSS 2.0 base score
7.0%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
6References
16 Jun 2026Last modified by NVD

Description

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."

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://www.securityfocus.com/bid/179
https://docs.microsoft.com/en-us/security-updates/securitybulletins/1998/ms98-018
https://exchange.xforce.ibmcloud.com/vulnerabilities/1737
http://www.securityfocus.com/bid/179
https://docs.microsoft.com/en-us/security-updates/securitybulletins/1998/ms98-018
https://exchange.xforce.ibmcloud.com/vulnerabilities/1737

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-1999-1055), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.