CVE-2018-20450

6.5 mediumEPSS 1.1%

Medium (6.5) in libxls project libxls. EPSS 1.1% chance of exploitation in the next 30 days.

The read_MSAT function in ole.c in libxls 1.4.0 has a double free that allows attackers to cause a denial of service (application crash) via a crafted file, a different vulnerability than CVE-2017-2897.

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: 1.1% chance of exploitation in the next 30 days; higher than 64% of CVEs (scores of 2026-10-31)
CWE: CWE-415
Published: 2018-12-25
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

libxls_project:libxls

References

https://github.com/evanmiller/libxls/issues/34
https://security.gentoo.org/glsa/202003-64
https://github.com/evanmiller/libxls/issues/34
https://security.gentoo.org/glsa/202003-64

Check your stack JSON