Vulnerability in Siemens Logo\! 8 Bm
CVE-2020-25234
A vulnerability has been identified in LOGO! 8 BM (incl. SIPLUS variants) (All versions < V8.3), LOGO! Soft Comfort (All versions < V8.3). The LOGO! program files generated and used by the affected components offer the possibility to save user-defined functions (UDF) in a password protected way. This protection is implemented in the software that displays the information. An attacker could reverse engineer the UDFs directly from stored program files.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.7 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N.
EPSS exploit prediction
EPSS: 0.003 (22.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 22nd percentile — 22.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · 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
- Siemens Logo! Soft Comfort — versions All versions < V8.3
Weakness classification (CWE)
References
- cert-portal.siemens.com/productcert/pdf/ssa-480824.pdf (Vendor Advisory)
Frequently asked questions
- What is CVE-2020-25234?
- CVE-2020-25234 is a high-severity vulnerability in Siemens Logo\! 8 Bm, classified under Use of Hard-coded Cryptographic Key. CVSS score: 7.7/10. Published 2020-12-14.
- How severe is CVE-2020-25234?
- High severity. CVSS v3 base score is 7.7 out of 10.