VULNERABILITY INTELLIGENCE

CVE-2021-25659

CVSS score7.5 HIGH
EPSS probability1.04%
CISA KEVNot currently listed
Published2021-08-10
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Description

A vulnerability has been identified in Automation License Manager 5 (All versions), Automation License Manager 6 (All versions < V6.0 SP9 Update 2). Sending specially crafted packets to port 4410/tcp of an affected system could lead to extensive memory being consumed and as such could cause a denial-of-service preventing legitimate users from using the system.

Weakness classification

  • productcert@siemens.com: CWE-400
  • nvd@nist.gov: CWE-400

Primary references