VULNERABILITY INTELLIGENCE

CVE-2021-21559

CVSS score7.1 HIGH
EPSS probability0.17%
CISA KEVNot currently listed
Published2021-06-08
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

Description

Dell EMC NetWorker, versions 18.x, 19.1.x, 19.2.x 19.3.x, 19.4, and 19.4.0.1 contain an Improper Certificate Validation vulnerability in the client (NetWorker Management Console) components which uses SSL encrypted connection in order to communicate with the application server. An unauthenticated attacker in the same network collision domain as the NetWorker Management Console client could potentially exploit this vulnerability to perform man-in-the-middle attacks to intercept and tamper the traffic between the client and the application server.

Weakness classification

  • security_alert@emc.com: CWE-295
  • nvd@nist.gov: CWE-295

Primary references