CVSS 3.1
7.5 highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HCVE-2023-51440
High (7.5) in siemens. EPSS 0.6% chance of exploitation in the next 30 days.
A vulnerability has been identified in SIMATIC CP 343-1 (6GK7343-1EX30-0XE0) (All versions), SIMATIC CP 343-1 Lean (6GK7343-1CX10-0XE0) (All versions), SIPLUS NET CP 343-1 (6AG1343-1EX30-7XE0) (All versions), SIPLUS NET CP 343-1 Lean (6AG1343-1CX10-2XE0) (All versions). Affected products incorrectly validate TCP sequence numbers. This could allow an unauthenticated remote attacker to create a denial of service condition by injecting spoofed TCP RST packets.
Severity
- EPSS
- 0.6% chance of exploitation in the next 30 days; higher than 48% of CVEs (scores of 2026-10-31)
- CWE
- CWE-940
- Published
- Modified
- Record from
- the NVD, synced
Affected
- siemens:simatic_cp_343-1_firmware
- siemens:simatic_cp_343-1_lean_firmware
- siemens:siplus_net_cp_343-1_firmware
- siemens:siplus_net_cp_343-1_lean_firmware