Buffer overflow in Siemens Simatic_cp343-1
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: 0.011 (60.7th 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.
Affected products
- Siemens Simatic_cp343-1
- Siemens Simatic_cp343-1_advanced
- Siemens Simatic_cp_343-1_advanced_firmware
- 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_erpc
- Siemens Simatic_cp_343-1_erpc_firmware
- Siemens Simatic_cp_343-1_firmware
- Siemens Simatic Cp 343-1 (Incl. Siplus Variants) — versions All versions
- Siemens Simatic_cp_343-1_lean
Weakness classification (CWE)
References
- productcert@siemens.com (Patch, Vendor Advisory)
Frequently asked questions
- What is CVE-2021-33737?
- CVE-2021-33737 is a high-severity vulnerability in Siemens Simatic_cp343-1, 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.