CVE Tools

Sinumerik 840d Sl

39 CVEs tracked. 1 of them are in CISA KEV.

This hub aggregates every CVE we track for Sinumerik 840d Sl, a product in the ics ot iot space. Use it to gauge the current risk picture and drill into individual advisories.

Sinumerik 840d Sl CVEs per month

Oct 2024 to Sep 2026. Point at a month, or focus the strip and use the arrow keys.
Sinumerik 840d Sl CVEs per month
MonthCVEs
2024-100
2024-110
2024-120
2025-010
2025-021
2025-030
2025-040
2025-050
2025-060
2025-070
2025-081
2025-090
2025-100
2025-110
2025-121
2026-010
2026-020
2026-030
2026-040
2026-051
2026-060
2026-070
2026-080
2026-090

Severity

How the 39 CVEs score on CVSS. Severity is not exploitation: KEV is counted above.

  • Critical38%
  • High1846%
  • Medium1744%
  • Low13%

Latest CVEs

The 15 most recently published vulnerabilities affecting Sinumerik 840d Sl.

  1. CVE-2025-40833The affected devices contain a null pointer dereference vulnerability while processing specially crafted IPv4 requests. This could allow an attacker to cause denial of service condition. A manual r...7.5
  2. CVE-2025-40820Affected products do not properly enforce TCP sequence number validation in specific scenarios but accept values within a broad range. This could allow an unauthenticated remote attacker e.g. to in...7.5
  3. CVE-2025-40743A 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 versions < V4.95 SP5), SINUMERIK MC (...8.3
  4. CVE-2024-23814The integrated ICMP service of the network stack of affected devices can be forced to exhaust its available memory resources when receiving specially crafted messages targeting IP fragment re-asse...5.3
  5. CVE-2024-43781A vulnerability has been identified in SINUMERIK 828D V4 (All versions < V4.95 SP3), SINUMERIK 840D sl V4 (All versions < V4.95 SP3 in connection with using Create MyConfig (CMC) <= V4.8 SP1 HF6), ...5.5
  6. CVE-2024-41171A vulnerability has been identified in SINUMERIK 828D V4 (All versions), SINUMERIK 828D V5 (All versions < V5.24), SINUMERIK 840D sl V4 (All versions), SINUMERIK ONE (All versions < V6.24). Affecte...8.8
  7. CVE-2020-15783A vulnerability has been identified in SIMATIC S7-300 CPU family (incl. related ET200 CPUs and SIPLUS variants) (All versions), SIMATIC TDC CPU555 (All versions), SINUMERIK 840D sl (All versions). ...7.5
  8. CVE-2020-15791A 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. SIPLUS variants) (All versions), SIM...6.5
  9. CVE-2019-18336A vulnerability has been identified in SIMATIC S7-300 CPU family (incl. related ET200 CPUs and SIPLUS variants) (All versions < V3.X.17), SIMATIC TDC CP51M1 (All versions < V1.1.8), SIMATIC TDC CPU...7.5
  10. CVE-2019-10923An 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 installation.7.5
  11. CVE-2019-10936Affected devices improperly handle large amounts of specially crafted UDP packets. This could allow an unauthenticated remote attacker to trigger a denial of service condition.7.5
  12. CVE-2019-11477Integer overflow in TCP_SKB_CB(skb)->tcp_gso_segs7.5
  13. CVE-2019-11478SACK can cause extensive memory use via fragmented resend queue5.3
  14. CVE-2019-11479Jonathan Looney discovered that the Linux kernel default MSS is hard-coded to 48 bytes. This allows a remote peer to fragment TCP resend queues significantly more than if a larger MSS were enforced...7.5
  15. CVE-2018-12130Microarchitectural Fill Buffer Data Sampling (MFBDS): Fill buffers on some microprocessors utilizing speculative execution may allow an authenticated user to potentially enable information disclosu...5.9

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