VULNERABILITY INTELLIGENCE

CVE-2018-3973

CVSS score7.8 HIGH

EPSS probability1.89%

CISA KEVNot currently listed

Published2019-02-06

Last modified2026-06-17

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

Description

An exploitable out of bounds write exists in the CAL parsing functionality of Canvas Draw version 5.0.0. A specially crafted CAL image processed via the application can lead to an out of bounds write overwriting arbitrary data. An attacker can deliver a PCX image to trigger this vulnerability and gain code execution.

Weakness classification

CWE-787: Out-of-bounds Write

Primary references

talos-cna@cisco.com — Broken Link, Third Party Advisory, VDB Entry
talos-cna@cisco.com — Exploit, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 — Broken Link, Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108 — Exploit, Third Party Advisory