CVE-2018-20304

6.5 mediumEPSS 0.9%

Medium (6.5) in libexcel project libexcel. EPSS 0.9% chance of exploitation in the next 30 days.

wbook_addworksheet in workbook.c in libexcel.a in libexcel 0.01 allows attackers to cause a denial of service (SEGV) via a long second argument. NOTE: this is not a Microsoft product.

Severity

CVSS 3.0

6.5 medium

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

EPSS: 0.9% chance of exploitation in the next 30 days; higher than 58% of CVEs (scores of 2026-10-31)
CWE: CWE-119
Published: 2018-12-20
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

libexcel_project:libexcel

References

https://github.com/devinsmith/libexcel/issues/9
https://github.com/devinsmith/libexcel/issues/9

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