CVE-2018-18586

PoC —

CVSS 3.0

5.3 medium

EPSS

3%p88

Published

Oct 23, 2018 (Oct 23, 2018)

Modified

Jun 17, 2026

Description

chmextract.c in the chmextract sample program, as distributed with libmspack before 0.8alpha, does not protect against absolute/relative pathnames in CHM files, leading to Directory Traversal. NOTE: the vendor disputes that this is a libmspack vulnerability, because chmextract.c was only intended as a source-code example, not a supported application

Vendors: kyzer
Products: libmspack
Weakness: CWE-22
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

NVD CVE.org GitHub PoCs EPSS (3.3%)

In the news0 stories

No ingested article mentions this CVE yet.