Vulnerability · Published Aug 10, 2021 · Assigned by siemens
CVE-2021-25659
High 7.5
In plain English
A high-severity uncontrolled resource consumption in Automation License Manager 5 from Siemens. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.0% (higher than 64% of all known vulnerabilities).
Severity (CVSS NVD)7.5High
Exploit odds (30 days)1.0%top 35.9% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official 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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Siemens | Automation License Manager 5 | All versions |
| Siemens | Automation License Manager 6 | All versions < V6.0 SP9 Update 2 |
Weakness: CWE-400
References
- https://cert-portal.siemens.com/productcert/pdf/ssa-158827.pdf x_refsource_MISC