CVE-2018-20843

HighCVSS 7.5/10Last modified Oct 14, 2026

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).

Metrics

CVSS 3.1 7.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-611

Affected software

No affected versions have been published.

Timeline

Published
Jun 24, 2019
Last modified
Oct 14, 2026
NVD status
Modified

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CVE-2018-20843: High severity, CVSS 7.5 | Vulnix