CVE-2017-6920

CriticalCVSS 9.8/10Last modified Jun 17, 2026

Description

Drupal core 8 before versions 8.3.4 allows remote attackers to execute arbitrary code due to the PECL YAML parser not handling PHP objects safely during certain operations.

Metrics

CVSS 3.0 9.8/10CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-19

Affected software

No affected versions have been published.

Timeline

Published: Aug 6, 2018
Last modified: Jun 17, 2026
NVD status: Modified

Related CVEs from 2017

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