VULNERABILITY INTELLIGENCE

CVE-2018-20843

CVSS score7.5 HIGH
EPSS probability7.11%
CISA KEVNot currently listed
Published2019-06-24
Last modified2026-10-14
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Description

In libexpat in Expat before 2.2.7, XML input including XML names that contain a large number of colons could make the XML parser consume a high amount of RAM and CPU resources while processing (enough to be usable for denial-of-service attacks).

Weakness classification

  • CWE-611: Improper Restriction of XML External Entity Reference

Primary references