Vulnerability in Siemens Simatic Cp 1543-1
CVE-2021-33716
A vulnerability has been identified in SIMATIC CP 1543-1 (incl. SIPLUS variants) (All versions < V3.0), SIMATIC CP 1545-1 (All versions < V1.1). An attacker with access to the subnet of the affected device could retrieve sensitive information stored in cleartext.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.003 (15.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 15th percentile — 15.2% 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 Simatic Cp 1543-1
- Siemens Simatic Cp 1543-1 Firmware
- Siemens Simatic Cp 1543-1 (Incl. Siplus Variants) — versions All versions < V3.0
- Siemens Simatic Cp 1545-1 — versions All versions < V1.1
- Siemens Simatic Cp 1545-1
- Siemens Simatic Cp 1545-1 Firmware
Weakness classification (CWE)
References
- cert-portal.siemens.com/productcert/pdf/ssa-535997.pdf (Patch, Vendor Advisory)
Frequently asked questions
- What is CVE-2021-33716?
- CVE-2021-33716 is a medium-severity vulnerability in Siemens Simatic Cp 1543-1, classified under Cleartext Storage of Sensitive Information. CVSS score: 6.5/10. Published 2021-09-14.
- How severe is CVE-2021-33716?
- Medium severity. CVSS v3 base score is 6.5 out of 10.