Description
The 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 restart is required to recover the system.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Siemens | IE/PB LINK HA (6GK1411-5BB00) | — | — |
| Siemens | IE/PB link PN IO (6GK1411-5AB10) | — | — |
| Siemens | RUGGEDCOM RM1224 LTE(4G) EU (6GK6108-4AM00-2BA2) | < V8.3 | V8.3 |
| Siemens | RUGGEDCOM RM1224 LTE(4G) NAM (6GK6108-4AM00-2DA2) | < V8.3 | V8.3 |
| Siemens | SCALANCE M804PB (6GK5804-0AP00-2AA2) | < V8.3 | V8.3 |
| Siemens | SCALANCE M812-1 ADSL-Router (6GK5812-1AA00-2AA2) | < V8.3 | V8.3 |
| Siemens | SCALANCE M812-1 ADSL-Router (6GK5812-1BA00-2AA2) | < V8.3 | V8.3 |
| Siemens | SCALANCE M816-1 ADSL-Router (6GK5816-1AA00-2AA2) | < V8.3 | V8.3 |
| Siemens | SCALANCE M816-1 ADSL-Router (6GK5816-1BA00-2AA2) | < V8.3 | V8.3 |
| Siemens | SCALANCE M826-2 SHDSL-Router (6GK5826-2AB00-2AB2) | < V8.3 | V8.3 |
| Siemens | SCALANCE M874-2 (6GK5874-2AA00-2AA2) | < V8.3 | V8.3 |
| Siemens | SCALANCE M874-3 (6GK5874-3AA00-2AA2) | < V8.3 | V8.3 |
| Siemens | SCALANCE M874-3 3G-Router (CN) (6GK5874-3AA00-2FA2) | < V8.3 | V8.3 |
| Siemens | SCALANCE M876-3 (6GK5876-3AA02-2BA2) | < V8.3 | V8.3 |
| Siemens | SCALANCE M876-3 (ROK) (6GK5876-3AA02-2EA2) | < V8.3 | V8.3 |
| Siemens | SCALANCE M876-4 (6GK5876-4AA10-2BA2) | < V8.3 | V8.3 |
| Siemens | SCALANCE M876-4 (EU) (6GK5876-4AA00-2BA2) | < V8.3 | V8.3 |
| Siemens | SCALANCE M876-4 (NAM) (6GK5876-4AA00-2DA2) | < V8.3 | V8.3 |
| Siemens | SCALANCE MUB852-1 (A1) (6GK5852-1EA10-1AA1) | < V8.3 | V8.3 |
| Siemens | SCALANCE MUB852-1 (B1) (6GK5852-1EA10-1BA1) | < V8.3 | V8.3 |
| Siemens | SCALANCE MUM853-1 (A1) (6GK5853-2EA10-2AA1) | < V8.3 | V8.3 |
| Siemens | SCALANCE MUM853-1 (B1) (6GK5853-2EA10-2BA1) | < V8.3 | V8.3 |
| Siemens | SCALANCE MUM853-1 (EU) (6GK5853-2EA00-2DA1) | < V8.3 | V8.3 |
| Siemens | SCALANCE MUM856-1 (A1) (6GK5856-2EA10-3AA1) | < V8.3 | V8.3 |
| Siemens | SCALANCE MUM856-1 (B1) (6GK5856-2EA10-3BA1) | < V8.3 | V8.3 |
| Siemens | SCALANCE MUM856-1 (CN) (6GK5856-2EA00-3FA1) | < V8.3 | V8.3 |
| Siemens | SCALANCE MUM856-1 (EU) (6GK5856-2EA00-3DA1) | < V8.3 | V8.3 |
| Siemens | SCALANCE MUM856-1 (RoW) (6GK5856-2EA00-3AA1) | < V8.3 | V8.3 |
| Siemens | SCALANCE S615 EEC LAN-Router (6GK5615-0AA01-2AA2) | < V8.3 | V8.3 |
| Siemens | SCALANCE S615 LAN-Router (6GK5615-0AA00-2AA2) | < V8.3 | V8.3 |
| Siemens | SCALANCE SC622-2C (6GK5622-2GS00-2AC2) | < V3.2 | V3.2 |
| Siemens | SCALANCE SC626-2C (6GK5626-2GS00-2AC2) | < V3.2 | V3.2 |
| Siemens | SCALANCE SC632-2C (6GK5632-2GS00-2AC2) | < V3.2 | V3.2 |
| Siemens | SCALANCE SC636-2C (6GK5636-2GS00-2AC2) | < V3.2 | V3.2 |
| Siemens | SCALANCE SC642-2C (6GK5642-2GS00-2AC2) | < V3.2 | V3.2 |
| Siemens | SCALANCE SC646-2C (6GK5646-2GS00-2AC2) | < V3.2 | V3.2 |
| Siemens | SCALANCE W1748-1 M12 (6GK5748-1GY01-0AA0) | — | — |
| Siemens | SCALANCE W1748-1 M12 (6GK5748-1GY01-0TA0) | — | — |
| Siemens | SCALANCE W1788-1 M12 (6GK5788-1GY01-0AA0) | — | — |
| Siemens | SCALANCE W1788-2 EEC M12 (6GK5788-2GY01-0TA0) | — | — |
| Siemens | SCALANCE W1788-2 M12 (6GK5788-2GY01-0AA0) | — | — |
| Siemens | SCALANCE W1788-2IA M12 (6GK5788-2HY01-0AA0) | — | — |
| Siemens | SCALANCE W721-1 RJ45 (6GK5721-1FC00-0AA0) | < V6.6.0 | V6.6.0 |
| Siemens | SCALANCE W721-1 RJ45 (6GK5721-1FC00-0AB0) | < V6.6.0 | V6.6.0 |
| Siemens | SCALANCE W722-1 RJ45 (6GK5722-1FC00-0AA0) | < V6.6.0 | V6.6.0 |
| Siemens | SCALANCE W722-1 RJ45 (6GK5722-1FC00-0AB0) | < V6.6.0 | V6.6.0 |
| Siemens | SCALANCE W722-1 RJ45 (6GK5722-1FC00-0AC0) | < V6.6.0 | V6.6.0 |
| Siemens | SCALANCE W734-1 RJ45 (6GK5734-1FX00-0AA0) | < V6.6.0 | V6.6.0 |
| Siemens | SCALANCE W734-1 RJ45 (6GK5734-1FX00-0AA6) | < V6.6.0 | V6.6.0 |
| Siemens | SCALANCE W734-1 RJ45 (6GK5734-1FX00-0AB0) | < V6.6.0 | V6.6.0 |
| Siemens | SCALANCE W734-1 RJ45 (USA) (6GK5734-1FX00-0AB6) | < V6.6.0 | V6.6.0 |
| Siemens | SCALANCE W738-1 M12 (6GK5738-1GY00-0AA0) | < V6.6.0 | V6.6.0 |
| Siemens | SCALANCE W738-1 M12 (6GK5738-1GY00-0AB0) | < V6.6.0 | V6.6.0 |
| Siemens | SCALANCE W748-1 M12 (6GK5748-1GD00-0AA0) | < V6.6.0 | V6.6.0 |
| Siemens | SCALANCE W748-1 M12 (6GK5748-1GD00-0AB0) | < V6.6.0 | V6.6.0 |
| Siemens | SCALANCE W748-1 RJ45 (6GK5748-1FC00-0AA0) | < V6.6.0 | V6.6.0 |
| Siemens | SCALANCE W748-1 RJ45 (6GK5748-1FC00-0AB0) | < V6.6.0 | V6.6.0 |
| Siemens | SCALANCE W761-1 RJ45 (6GK5761-1FC00-0AA0) | < V6.6.0 | V6.6.0 |
| Siemens | SCALANCE W761-1 RJ45 (6GK5761-1FC00-0AB0) | < V6.6.0 | V6.6.0 |
| Siemens | SCALANCE W774-1 M12 EEC (6GK5774-1FY00-0TA0) | < V6.6.0 | V6.6.0 |
| Siemens | SCALANCE W774-1 M12 EEC (6GK5774-1FY00-0TB0) | < V6.6.0 | V6.6.0 |
| Siemens | SCALANCE W774-1 RJ45 (6GK5774-1FX00-0AA0) | < V6.6.0 | V6.6.0 |
| Siemens | SCALANCE W774-1 RJ45 (6GK5774-1FX00-0AA6) | < V6.6.0 | V6.6.0 |
| Siemens | SCALANCE W774-1 RJ45 (6GK5774-1FX00-0AB0) | < V6.6.0 | V6.6.0 |
| Siemens | SCALANCE W774-1 RJ45 (6GK5774-1FX00-0AC0) | < V6.6.0 | V6.6.0 |
| Siemens | SCALANCE W774-1 RJ45 (USA) (6GK5774-1FX00-0AB6) | < V6.6.0 | V6.6.0 |
| Siemens | SCALANCE W778-1 M12 (6GK5778-1GY00-0AA0) | < V6.6.0 | V6.6.0 |
| Siemens | SCALANCE W778-1 M12 (6GK5778-1GY00-0AB0) | < V6.6.0 | V6.6.0 |
| Siemens | SCALANCE W778-1 M12 EEC (6GK5778-1GY00-0TA0) | < V6.6.0 | V6.6.0 |
| Siemens | SCALANCE W778-1 M12 EEC (USA) (6GK5778-1GY00-0TB0) | < V6.6.0 | V6.6.0 |
| Siemens | SCALANCE W786-1 RJ45 (6GK5786-1FC00-0AA0) | < V6.6.0 | V6.6.0 |
| Siemens | SCALANCE W786-1 RJ45 (6GK5786-1FC00-0AB0) | < V6.6.0 | V6.6.0 |
| Siemens | SCALANCE W786-2 RJ45 (6GK5786-2FC00-0AA0) | < V6.6.0 | V6.6.0 |
| Siemens | SCALANCE W786-2 RJ45 (6GK5786-2FC00-0AB0) | < V6.6.0 | V6.6.0 |
| Siemens | SCALANCE W786-2 RJ45 (6GK5786-2FC00-0AC0) | < V6.6.0 | V6.6.0 |
| Siemens | SCALANCE W786-2 SFP (6GK5786-2FE00-0AA0) | < V6.6.0 | V6.6.0 |
| Siemens | SCALANCE W786-2 SFP (6GK5786-2FE00-0AB0) | < V6.6.0 | V6.6.0 |
| Siemens | SCALANCE W786-2IA RJ45 (6GK5786-2HC00-0AA0) | < V6.6.0 | V6.6.0 |
| Siemens | SCALANCE W786-2IA RJ45 (6GK5786-2HC00-0AB0) | < V6.6.0 | V6.6.0 |
| Siemens | SCALANCE W788-1 M12 (6GK5788-1GD00-0AA0) | < V6.6.0 | V6.6.0 |
| Siemens | SCALANCE W788-1 M12 (6GK5788-1GD00-0AB0) | < V6.6.0 | V6.6.0 |
| Siemens | SCALANCE W788-1 RJ45 (6GK5788-1FC00-0AA0) | < V6.6.0 | V6.6.0 |
| Siemens | SCALANCE W788-1 RJ45 (6GK5788-1FC00-0AB0) | < V6.6.0 | V6.6.0 |
| Siemens | SCALANCE W788-2 M12 (6GK5788-2GD00-0AA0) | < V6.6.0 | V6.6.0 |
| Siemens | SCALANCE W788-2 M12 (6GK5788-2GD00-0AB0) | < V6.6.0 | V6.6.0 |
| Siemens | SCALANCE W788-2 M12 EEC (6GK5788-2GD00-0TA0) | < V6.6.0 | V6.6.0 |
| Siemens | SCALANCE W788-2 M12 EEC (6GK5788-2GD00-0TB0) | < V6.6.0 | V6.6.0 |
| Siemens | SCALANCE W788-2 M12 EEC (6GK5788-2GD00-0TC0) | < V6.6.0 | V6.6.0 |
| Siemens | SCALANCE W788-2 RJ45 (6GK5788-2FC00-0AA0) | < V6.6.0 | V6.6.0 |
| Siemens | SCALANCE W788-2 RJ45 (6GK5788-2FC00-0AB0) | < V6.6.0 | V6.6.0 |
| Siemens | SCALANCE W788-2 RJ45 (6GK5788-2FC00-0AC0) | < V6.6.0 | V6.6.0 |
| Siemens | SCALANCE WAB762-1 (6GK5762-1AJ00-6AA0) | < V3.2.0 | V3.2.0 |
| Siemens | SCALANCE WAM763-1 (6GK5763-1AL00-7DA0) | < V3.2.0 | V3.2.0 |
| Siemens | SCALANCE WAM763-1 (ME) (6GK5763-1AL00-7DC0) | < V3.2.0 | V3.2.0 |
| Siemens | SCALANCE WAM763-1 (US) (6GK5763-1AL00-7DB0) | < V3.2.0 | V3.2.0 |
| Siemens | SCALANCE WAM766-1 (6GK5766-1GE00-7DA0) | < V3.2.0 | V3.2.0 |
| Siemens | SCALANCE WAM766-1 (ME) (6GK5766-1GE00-7DC0) | < V3.2.0 | V3.2.0 |
| Siemens | SCALANCE WAM766-1 (US) (6GK5766-1GE00-7DB0) | < V3.2.0 | V3.2.0 |
| Siemens | SCALANCE WAM766-1 EEC (6GK5766-1GE00-7TA0) | < V3.2.0 | V3.2.0 |
| Siemens | SCALANCE WAM766-1 EEC (ME) (6GK5766-1GE00-7TC0) | < V3.2.0 | V3.2.0 |
Advisories 4
- SSA-392349 SSA-392349: Denial of Service Vulnerability in Industrial Devices Siemens ProductCERT · Nov 10, 2026
- ICSA-26-134-06 Siemens Industrial Devices CISA ICS & IT advisories · May 14, 2026
- NCSC-2026-0147 Kwetsbaarheden verholpen in Siemens-producten NCSC-NL (Netherlands) · May 13, 2026
- WID-SEC-2026-1467 Siemens SIMATIC S7: Schwachstelle ermöglicht Denial of Service BSI CERT-Bund (WID) · May 11, 2026