CVSS 3.1
7.5 highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HCVE-2020-25241
High (7.5) in siemens. EPSS 1.1% chance of exploitation in the next 30 days.
A vulnerability has been identified in SIMATIC MV400 family (All Versions < V7.0.6). The underlying TCP stack of the affected products does not correctly validate the sequence number for incoming TCP RST packages. An attacker could exploit this to terminate arbitrary TCP sessions.
Severity
- EPSS
- 1.1% chance of exploitation in the next 30 days; higher than 64% of CVEs (scores of 2026-10-31)
- CWEs
- CWE-129, CWE-1285
- Published
- Modified
- Record from
- the NVD, synced
Affected
- siemens:simatic_mv420_sr-b_body_firmware
- siemens:simatic_mv420_sr-b_firmware
- siemens:simatic_mv420_sr-p_body_firmware
- siemens:simatic_mv420_sr-p_firmware
- siemens:simatic_mv440_hr_firmware
- siemens:simatic_mv440_sr_firmware
- siemens:simatic_mv440_ur_firmware