Siemens Sinumerik 840d Sl
9 CVEs affecting Siemens Sinumerik 840d Sl. Latest disclosed: 2026-05-12. Critical: 0, High: 7.
| CVE | Severity | Score | Published | Summary |
|---|---|---|---|---|
CVE-2025-40743 | High | 8.3 | 2025-08-12 | A vulnerability has been identified in SINUMERIK 828D PPU.4 (All versions < V4.95 SP5), SINUMERIK 828D PPU.5 (All versions < V5.25 SP1), SINUMERIK 840D sl (All… |
CVE-2025-40833 | High | 7.5 | 2026-05-12 | The affected devices contain a null pointer dereference vulnerability while processing specially crafted IPv4 requests. This could allow an attacker to cause d… |
CVE-2025-40820 | High | 7.5 | 2025-12-09 | Affected products do not properly enforce TCP sequence number validation in specific scenarios but accept values within a broad range. This could allow an unau… |
CVE-2020-15783 | High | 7.5 | 2020-11-12 | A vulnerability has been identified in SIMATIC S7-300 CPU family (incl. related ET200 CPUs and SIPLUS variants) (All versions), SIMATIC TDC CPU555 (All version… |
CVE-2019-10923 | High | 7.5 | 2019-10-10 | An attacker with network access to an affected product may cause a denial of service condition by breaking the real-time synchronization (IRT) of the affected… |
CVE-2019-10936 | High | 7.5 | 2019-10-10 | Affected devices improperly handle large amounts of specially crafted UDP packets. This could allow an unauthenticated remote attacker to trigger a denial o… |
CVE-2017-12741 | High | 7.5 | 2017-12-26 | Specially crafted packets sent to port 161/udp could cause a denial of service condition. The affected devices must be restarted manually. |
CVE-2020-15791 | Medium | 6.5 | 2020-09-09 | A vulnerability has been identified in SIMATIC S7-300 CPU family (incl. related ET200 CPUs and SIPLUS variants) (All versions), SIMATIC S7-400 CPU family (incl… |
CVE-2024-23814 | Medium | 5.3 | 2025-02-11 | The integrated ICMP service of the network stack of affected devices can be forced to exhaust its available memory resources when receiving specially crafted… |