{"cve":"CVE-2018-18584","nvd":{"published":"2018-10-23T02:29:00.263","modified":"2026-06-17T01:47:32.860","status":"Modified","description":"In mspack/cab.h in libmspack before 0.8alpha and cabextract before 1.8, the CAB block input buffer is one byte too small for the maximal Quantum block, leading to an out-of-bounds write.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","score":6.5},"cwes":["CWE-787"],"references":["https://access.redhat.com/errata/RHSA-2019:2049","https://bugs.debian.org/911640","https://github.com/kyz/libmspack/commit/40ef1b4093d77ad3a5cfcee1f5cb6108b3a3bcc2","https://lists.debian.org/debian-lts-announce/2018/10/msg00017.html","https://security.gentoo.org/glsa/201903-20"],"products":["cabextract_project:cabextract","canonical:ubuntu_linux","debian:debian_linux","libmspack_project:libmspack","redhat:enterprise_linux","starwindsoftware:starwind_virtual_san","suse:linux_enterprise_server"],"source":"nvd","synced_at":"2026-10-19T20:53:59.789560037+00:00"},"epss":{"cve":"CVE-2018-18584","score":0.02662,"percentile":0.85706,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}