Vulnerability · Published Dec 14, 2021 · Assigned by siemens
CVE-2021-42027
High 7.4
In plain English
A high-severity improper certificate validation in SINUMERIK Edge from Siemens. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 43% of all known vulnerabilities).
Severity (CVSS NVD)7.4High
Exploit odds (30 days)0.5%top 57.3% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
A vulnerability has been identified in SINUMERIK Edge (All versions < V3.2). The affected software does not properly validate the server certificate when initiating a TLS connection. This could allow an attacker to spoof a trusted entity by interfering in the communication path between the client and the intended server.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Siemens | SINUMERIK Edge | All versions < V3.2 |
Weakness: CWE-295
References
- https://cert-portal.siemens.com/productcert/pdf/ssa-523250.pdf x_refsource_MISC