Vulnerability in Siemens Scalance Xm-400
CVE-2020-28393
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).
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.016 (75.3th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 75th percentile — 75.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.016 · newest: 0.016 · change: 0.000
Affected products
- Siemens Scalance Xm-400
- Siemens Scalance Xm-400 Firmware
- Siemens Scalance Xm408-4c
- Siemens Scalance Xm408-4c Firmware
- Siemens Scalance Xm408-4c L3
- Siemens Scalance Xm408-4c L3 Firmware
- Siemens Scalance Xm408-8c
- Siemens Scalance Xm408-8c Firmware
- Siemens Scalance Xm408-8c L3
- Siemens Scalance Xm408-8c L3 Firmware
Weakness classification (CWE)
References
- us-cert.cisa.gov/ics/advisories/icsa-21-131-10 (US Government Resource, Third Party Advisory)
- cert-portal.siemens.com/productcert/pdf/ssa-116379.pdf (Vendor Advisory)
Frequently asked questions
- What is CVE-2020-28393?
- CVE-2020-28393 is a high-severity vulnerability in Siemens Scalance Xm-400, classified under Incorrect Calculation. CVSS score: 7.5/10. Published 2021-05-12.
- How severe is CVE-2020-28393?
- High severity. CVSS v3 base score is 7.5 out of 10.