Vulnerability · Published May 12, 2021 · Assigned by siemens
CVE-2020-28393
High 7.5
In plain English
A high-severity security flaw in SCALANCE XM-400, XR-500. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.6% (higher than 76% of all known vulnerabilities).
Severity (CVSS NVD)7.5High
Exploit odds (30 days)1.6%top 23.7% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
An unauthenticated remote attacker could create a permanent denial-of-service condition by sending specially crafted OSPF packets. Successful exploitation requires OSPF to be enabled on an affected device on the SCALANCE XM-400, XR-500 (All versions prior to v6.4).
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| n/a | SCALANCE XM-400, XR-500 | All versions prior to v6.4 |
Weakness: CWE-682
References
- https://us-cert.cisa.gov/ics/advisories/icsa-21-131-10 x_refsource_MISC
- https://cert-portal.siemens.com/productcert/pdf/ssa-116379.pdf x_refsource_MISC