Vulnerability in Siemens Simatic Drive Controller Cpu 1504d Tf
CVE-2021-44693
Affected devices don't process correctly certain special crafted packets sent to port 102/tcp, which could allow an attacker to cause a denial of service in the device.
EPSS: 0.002 (41.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.9 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C.
Affected products
- Siemens Simatic Drive Controller Cpu 1504d Tf — versions All versions < V2.9.7
- Siemens Simatic Drive Controller Cpu 1507d Tf — versions All versions < V2.9.7
- Siemens Simatic Et 200sp Open Controller Cpu 1515sp Pc2 (Incl. Siplus Variants) — versions All versions < V21.9.7
- Siemens Simatic S7-1200 Cpu Family (Incl. Siplus Variants) — versions All versions < V4.6.0
- Siemens Simatic S7-1500 Cpu 1510sp-1 Pn — versions All versions < V2.9.7
- Siemens Simatic S7-1500 Cpu 1510sp F-1 Pn — versions All versions < V2.9.7
- Siemens Simatic S7-1500 Cpu 1511-1 Pn — versions All versions < V2.9.7
- Siemens Simatic S7-1500 Cpu 1511c-1 Pn — versions All versions < V2.9.7
- Siemens Simatic S7-1500 Cpu 1511f-1 Pn — versions All versions < V2.9.7
- Siemens Simatic S7-1500 Cpu 1511t-1 Pn — versions All versions < V2.9.7
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2021-44693?
- CVE-2021-44693 is a medium-severity vulnerability in Siemens Simatic Drive Controller Cpu 1504d Tf, classified under Improper Validation of Specified Quantity in Input. CVSS score: 4.9/10. Published 2022-12-13.
- How severe is CVE-2021-44693?
- Medium severity. CVSS v3 base score is 4.9 out of 10.