CVE-2020-27819

5.5 mediumEPSS 0.8%

Medium (5.5) in libxls project libxls. EPSS 0.8% chance of exploitation in the next 30 days.

An issue was discovered in libxls before and including 1.6.1 when reading Microsoft Excel files. A NULL pointer dereference vulnerability exists when parsing XLS cells in libxls/xls2csv.c:199. It could allow a remote attacker to cause a denial of service via crafted XLS file.

Severity

CVSS 3.1

5.5 medium

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

EPSS: 0.8% chance of exploitation in the next 30 days; higher than 57% of CVEs (scores of 2026-10-31)
CWE: CWE-476
Published: 2021-02-23
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

libxls_project:libxls

References

https://bugzilla.redhat.com/show_bug.cgi?id=1903296
https://bugzilla.redhat.com/show_bug.cgi?id=1903296

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