CVE-1999-1055

NONECVSS 0.0

0.0

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."

CVSS v3: —
EG Score: —
EPSS: 92.1%
KEV: Not listed

Published

December 31, 1999

Last Modified

April 16, 2026

References (6)

cve@mitrehttp://www.securityfocus.com/bid/179
cve@mitrehttps://docs.microsoft.com/en-us/security-updates/securitybulletins/1998/ms98-018
cve@mitrehttps://exchange.xforce.ibmcloud.com/vulnerabilities/1737
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/179
af854a3a-2127-422b-91ae-364da2661108https://docs.microsoft.com/en-us/security-updates/securitybulletins/1998/ms98-018
af854a3a-2127-422b-91ae-364da2661108https://exchange.xforce.ibmcloud.com/vulnerabilities/1737

Data Freshness Timeline

(refreshed 13× in last 7d / 20× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

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Frequently asked(4)

What is CVE-1999-1055?

CVE-1999-1055 is a none vulnerability published on December 31, 1999. 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."

When was CVE-1999-1055 disclosed?

CVE-1999-1055 was first published in the National Vulnerability Database on December 31, 1999, with the most recent update on April 16, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-1999-1055 actively exploited?

CVE-1999-1055 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 92.1% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

How do I remediate CVE-1999-1055?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-1999-1055, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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CVE-1999-1055

📅 Published

🔄 Last Modified

🔗 References (6)