Vulnerability in Siemens Logo\! 8 Bm
CVE-2020-25233
A vulnerability has been identified in LOGO! 8 BM (incl. SIPLUS variants) (All versions < V8.3). The firmware update of affected devices contains the private RSA key that is used as a basis for encryption of communication with the device.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.002 (8.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 9th percentile — 8.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: +0.000
Affected products
- Siemens Logo\! 8 Bm
- Siemens Logo\! 8 Bm Firmware
- Siemens Logo! 8 Bm (Incl. Siplus Variants) — versions All versions < V8.3
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cert-portal.siemens.com/productcert/pdf/ssa-480824.pdf (Vendor Advisory)
Frequently asked questions
- What is CVE-2020-25233?
- CVE-2020-25233 is a medium-severity vulnerability in Siemens Logo\! 8 Bm, classified under Use of Hard-coded Cryptographic Key. CVSS score: 5.5/10. Published 2020-12-14.
- How severe is CVE-2020-25233?
- Medium severity. CVSS v3 base score is 5.5 out of 10.
- Is CVE-2020-25233 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.