VulnerabilityModified
CVE-2017-6920
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.
CRITICAL 9.8EPSS 20.5%
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 20.5%, higher than 97% of all known CVEs. Patch or mitigate before the next change window.
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.
- CVSS 3.0
- 9.8 CRITICALCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 20.48% probability · 97th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-19
- Affected
- drupal/drupal
- Source
- mlhess@drupal.org
References
- http://www.securityfocus.com/bid/99211Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1038781Third Party Advisory, VDB Entry
- https://www.drupal.org/forum/newsletters/security-advisories-for-drupal-core/2017-06-21/drupal-core-multiplePatch, Vendor Advisory
- http://www.securityfocus.com/bid/99211Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1038781Third Party Advisory, VDB Entry
- https://www.drupal.org/forum/newsletters/security-advisories-for-drupal-core/2017-06-21/drupal-core-multiplePatch, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.