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Case File

CVE-2018-20843

HIGH · CVSS 7.5 EPSS 7.11% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2019-06-24 · Last synced 2026-08-04

CyberRota Analysis

This is a high severity vulnerability with a CVSS score of 7.5. Public exploit code or proof-of-concept references have been detected in its references. It may lead to a denial-of-service condition.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2018-20843
Severity
HIGH
CVSS
7.5
EPSS
7.11%

Original NVD 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).

Related CVEs

Other vulnerabilities affecting the same vendor(s)