CVE-2021-25659
First published: Tue Aug 10 2021(Updated: )
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.
Credit: productcert@siemens.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Siemens Automation License Manager | >=5.0.0<6.0.9 |
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Frequently Asked Questions
What is the severity of CVE-2021-25659?
The severity of CVE-2021-25659 is high with a severity value of 7.5.
How does CVE-2021-25659 affect Automation License Manager?
CVE-2021-25659 affects all versions of Automation License Manager 5 and versions of Automation License Manager 6 prior to V6.0 SP9 Update 2.
What is the impact of CVE-2021-25659?
CVE-2021-25659 can result in extensive memory consumption and could cause denial of service on affected systems.
How can CVE-2021-25659 be exploited?
CVE-2021-25659 can be exploited by sending specially crafted packets to port 4410/tcp of an affected system.
Is there a fix available for CVE-2021-25659?
Yes, Siemens has released an update to address the vulnerability. Please refer to the Siemens product advisory for more information.
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