Buffer overflow in Siemens Simatic Cp 343-1 Advanced (Incl. Siplus Variants)
CVE-2021-33737
A vulnerability has been identified in SIMATIC CP 343-1 (incl. SIPLUS variants) (All versions), SIMATIC CP 343-1 Advanced (incl. SIPLUS variants) (All versions), SIMATIC CP 343-1 ERPC (All versions), SIMATIC CP 343-1 Lean (incl. SIPLUS var…
Vulnerability class: Buffer Overflow
EPSS: 0.002 (35.8th percentile) — read the EPSS interpretation.
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/E:P/RL:U/RC:C.
Affected products
- Siemens Simatic Cp 343-1 Advanced (Incl. Siplus Variants) — versions All versions
- Siemens Simatic Cp 343-1 Erpc — versions All versions
- Siemens Simatic Cp 343-1 (Incl. Siplus Variants) — versions All versions
- Siemens Simatic Cp 343-1 Lean (Incl. Siplus Variants) — versions All versions
- Siemens Simatic Cp 443-1 — versions All versions < V3.3
- Siemens Simatic Cp 443-1 Advanced — versions All versions < V3.3
- Siemens Siplus Net Cp 443-1 — versions All versions < V3.3
- Siemens Siplus Net Cp 443-1 Advanced — versions All versions < V3.3
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2021-33737?
- CVE-2021-33737 is a high-severity vulnerability in Siemens Simatic Cp 343-1 Advanced (Incl. Siplus Variants), classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 7.5/10. Published 2021-09-14.
- How severe is CVE-2021-33737?
- High severity. CVSS v3 base score is 7.5 out of 10.