CVE-2025-40833
- State
- Published
- Severity
- 8.7 High
- Published
- May 12, 2026
- Updated
- Aug 11, 2026
- Reserved
- Apr 16, 2025
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 8.7 High | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N | siemens |
| 3.1 | 7.5 High | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | siemens |
Weaknesses
- CWE-476 NULL Pointer Dereference
Affected Products
| Product | Versions |
|---|---|
IE/PB LINK HASiemens |
|
IE/PB link PN IOSiemens |
|
RUGGEDCOM RM1224 LTE(4G) EUSiemens |
|
RUGGEDCOM RM1224 LTE(4G) NAMSiemens |
|
SCALANCE M804PBSiemens |
|
SCALANCE M812-1 ADSL-RouterSiemens |
|
SCALANCE M812-1 ADSL-RouterSiemens |
|
SCALANCE M816-1 ADSL-RouterSiemens |
|
SCALANCE M816-1 ADSL-RouterSiemens |
|
SCALANCE M826-2 SHDSL-RouterSiemens |
|
SCALANCE M874-2Siemens |
|
SCALANCE M874-3Siemens |
|
SCALANCE M874-3 3G-Router (CN)Siemens |
|
SCALANCE M876-3Siemens |
|
SCALANCE M876-3 (ROK)Siemens |
|
SCALANCE M876-4Siemens |
|
SCALANCE M876-4 (EU)Siemens |
|
SCALANCE M876-4 (NAM)Siemens |
|
SCALANCE MUB852-1 (A1)Siemens |
|
SCALANCE MUB852-1 (B1)Siemens |
|
SCALANCE MUM853-1 (A1)Siemens |
|
SCALANCE MUM853-1 (B1)Siemens |
|
SCALANCE MUM853-1 (EU)Siemens |
|
SCALANCE MUM856-1 (A1)Siemens |
|
SCALANCE MUM856-1 (B1)Siemens |
|
SCALANCE MUM856-1 (CN)Siemens |
|
SCALANCE MUM856-1 (EU)Siemens |
|
SCALANCE MUM856-1 (RoW)Siemens |
|
SCALANCE S615 EEC LAN-RouterSiemens |
|
SCALANCE S615 LAN-RouterSiemens |
|
SCALANCE SC622-2CSiemens |
|
SCALANCE SC626-2CSiemens |
|
SCALANCE SC632-2CSiemens |
|
SCALANCE SC636-2CSiemens |
|
SCALANCE SC642-2CSiemens |
|
SCALANCE SC646-2CSiemens |
|
SCALANCE W1748-1 M12Siemens |
|
SCALANCE W1748-1 M12Siemens |
|
SCALANCE W1788-1 M12Siemens |
|
SCALANCE W1788-2 EEC M12Siemens |
|
SCALANCE W1788-2 M12Siemens |
|
SCALANCE W1788-2IA M12Siemens |
|
SCALANCE W721-1 RJ45Siemens |
|
SCALANCE W721-1 RJ45Siemens |
|
SCALANCE W722-1 RJ45Siemens |
|
SCALANCE W722-1 RJ45Siemens |
|
SCALANCE W722-1 RJ45Siemens |
|
SCALANCE W734-1 RJ45Siemens |
|
SCALANCE W734-1 RJ45Siemens |
|
SCALANCE W734-1 RJ45Siemens |
|
SCALANCE W734-1 RJ45 (USA)Siemens |
|
SCALANCE W738-1 M12Siemens |
|
SCALANCE W738-1 M12Siemens |
|
SCALANCE W748-1 M12Siemens |
|
SCALANCE W748-1 M12Siemens |
|
SCALANCE W748-1 RJ45Siemens |
|
SCALANCE W748-1 RJ45Siemens |
|
SCALANCE W761-1 RJ45Siemens |
|
SCALANCE W761-1 RJ45Siemens |
|
SCALANCE W774-1 M12 EECSiemens |
|
SCALANCE W774-1 M12 EECSiemens |
|
SCALANCE W774-1 RJ45Siemens |
|
SCALANCE W774-1 RJ45Siemens |
|
SCALANCE W774-1 RJ45Siemens |
|
SCALANCE W774-1 RJ45Siemens |
|
SCALANCE W774-1 RJ45 (USA)Siemens |
|
SCALANCE W778-1 M12Siemens |
|
SCALANCE W778-1 M12Siemens |
|
SCALANCE W778-1 M12 EECSiemens |
|
SCALANCE W778-1 M12 EEC (USA)Siemens |
|
SCALANCE W786-1 RJ45Siemens |
|
SCALANCE W786-1 RJ45Siemens |
|
SCALANCE W786-2 RJ45Siemens |
|
SCALANCE W786-2 RJ45Siemens |
|
SCALANCE W786-2 RJ45Siemens |
|
SCALANCE W786-2 SFPSiemens |
|
SCALANCE W786-2 SFPSiemens |
|
SCALANCE W786-2IA RJ45Siemens |
|
SCALANCE W786-2IA RJ45Siemens |
|
SCALANCE W788-1 M12Siemens |
|
SCALANCE W788-1 M12Siemens |
|
SCALANCE W788-1 RJ45Siemens |
|
SCALANCE W788-1 RJ45Siemens |
|
SCALANCE W788-2 M12Siemens |
|
SCALANCE W788-2 M12Siemens |
|
SCALANCE W788-2 M12 EECSiemens |
|
SCALANCE W788-2 M12 EECSiemens |
|
SCALANCE W788-2 M12 EECSiemens |
|
SCALANCE W788-2 RJ45Siemens |
|
SCALANCE W788-2 RJ45Siemens |
|
SCALANCE W788-2 RJ45Siemens |
|
SCALANCE WAB762-1Siemens |
|
SCALANCE WAM763-1Siemens |
|
SCALANCE WAM763-1 (ME)Siemens |
|
SCALANCE WAM763-1 (US)Siemens |
|
SCALANCE WAM766-1Siemens |
|
SCALANCE WAM766-1 (ME)Siemens |
|
SCALANCE WAM766-1 (US)Siemens |
|
SCALANCE WAM766-1 EECSiemens |
|
SCALANCE WAM766-1 EEC (ME)Siemens |
|
SCALANCE WAM766-1 EEC (US)Siemens |
|
SCALANCE WUB762-1Siemens |
|
SCALANCE WUB762-1 iFeaturesSiemens |
|
SCALANCE WUM763-1Siemens |
|
SCALANCE WUM763-1Siemens |
|
SCALANCE WUM763-1 (US)Siemens |
|
SCALANCE WUM763-1 (US)Siemens |
|
SCALANCE WUM766-1Siemens |
|
SCALANCE WUM766-1 (ME)Siemens |
|
SCALANCE WUM766-1 (USA)Siemens |
|
SCALANCE X204-2Siemens |
|
SCALANCE X204-2FMSiemens |
|
SCALANCE X204-2LDSiemens |
|
SCALANCE X204-2LD TSSiemens |
|
SCALANCE X204-2TSSiemens |
|
SCALANCE X206-1Siemens |
|
SCALANCE X206-1LDSiemens |
|
SCALANCE X208Siemens |
|
SCALANCE X208PROSiemens |
|
SCALANCE X212-2Siemens |
|
SCALANCE X212-2LDSiemens |
|
SCALANCE X216Siemens |
|
SCALANCE X224Siemens |
|
SCALANCE X302-7 EEC (230V, coated)Siemens |
|
SCALANCE X302-7 EEC (230V)Siemens |
|
SCALANCE X302-7 EEC (24V, coated)Siemens |
|
SCALANCE X302-7 EEC (24V)Siemens |
|
SCALANCE X302-7 EEC (2x 230V, coated)Siemens |
|
SCALANCE X302-7 EEC (2x 230V)Siemens |
|
SCALANCE X302-7 EEC (2x 24V, coated)Siemens |
|
SCALANCE X302-7 EEC (2x 24V)Siemens |
|
SCALANCE X304-2FESiemens |
|
SCALANCE X306-1LD FESiemens |
|
SCALANCE X307-2 EEC (230V, coated)Siemens |
|
SCALANCE X307-2 EEC (230V)Siemens |
|
SCALANCE X307-2 EEC (24V, coated)Siemens |
|
SCALANCE X307-2 EEC (24V)Siemens |
|
SCALANCE X307-2 EEC (2x 230V, coated)Siemens |
|
SCALANCE X307-2 EEC (2x 230V)Siemens |
|
SCALANCE X307-2 EEC (2x 24V, coated)Siemens |
|
SCALANCE X307-2 EEC (2x 24V)Siemens |
|
SCALANCE X307-3Siemens |
|
SCALANCE X307-3Siemens |
|
SCALANCE X307-3LDSiemens |
|
SCALANCE X307-3LDSiemens |
|
SCALANCE X308-2Siemens |
|
SCALANCE X308-2 RD (inkl. SIPLUS variants)Siemens |
|
SCALANCE X308-2LDSiemens |
|
SCALANCE X308-2LDSiemens |
|
SCALANCE X308-2LHSiemens |
|
SCALANCE X308-2LHSiemens |
|
SCALANCE X308-2LH+Siemens |
|
SCALANCE X308-2LH+Siemens |
|
SCALANCE X308-2MSiemens |
|
SCALANCE X308-2MSiemens |
|
SCALANCE X308-2M PoESiemens |
|
SCALANCE X308-2M PoESiemens |
|
SCALANCE X308-2M TSSiemens |
|
SCALANCE X308-2M TSSiemens |
|
SCALANCE X310Siemens |
|
SCALANCE X310Siemens |
|
SCALANCE X310FESiemens |
|
SCALANCE X310FESiemens |
|
SCALANCE X320-1 FESiemens |
|
SCALANCE X320-1-2LD FESiemens |
|
SCALANCE X408-2Siemens |
|
SCALANCE XF204Siemens |
|
SCALANCE XF204-2Siemens |
|
SCALANCE XF206-1Siemens |
|
SCALANCE XF208Siemens |
|
SCALANCE XM408-4CSiemens |
|
SCALANCE XM408-4C (L3 int.)Siemens |
|
SCALANCE XM408-8CSiemens |
|
SCALANCE XM408-8C (L3 int.)Siemens |
|
SCALANCE XM416-4CSiemens |
|
SCALANCE XM416-4C (L3 int.)Siemens |
|
SCALANCE XR324-12M (230V, ports on front)Siemens |
|
SCALANCE XR324-12M (230V, ports on front)Siemens |
|
SCALANCE XR324-12M (230V, ports on rear)Siemens |
|
SCALANCE XR324-12M (230V, ports on rear)Siemens |
|
SCALANCE XR324-12M (24V, ports on front)Siemens |
|
SCALANCE XR324-12M (24V, ports on front)Siemens |
|
SCALANCE XR324-12M (24V, ports on rear)Siemens |
|
SCALANCE XR324-12M (24V, ports on rear)Siemens |
|
SCALANCE XR324-12M TS (24V)Siemens |
|
SCALANCE XR324-12M TS (24V)Siemens |
|
SCALANCE XR324-4M EEC (100-240VAC/60-250VDC, ports on front)Siemens |
|
SCALANCE XR324-4M EEC (100-240VAC/60-250VDC, ports on front)Siemens |
|
SCALANCE XR324-4M EEC (100-240VAC/60-250VDC, ports on rear)Siemens |
|
SCALANCE XR324-4M EEC (100-240VAC/60-250VDC, ports on rear)Siemens |
|
SCALANCE XR324-4M EEC (24V, ports on front)Siemens |
|
SCALANCE XR324-4M EEC (24V, ports on front)Siemens |
|
SCALANCE XR324-4M EEC (24V, ports on rear)Siemens |
|
SCALANCE XR324-4M EEC (24V, ports on rear)Siemens |
|
SCALANCE XR324-4M EEC (2x 100-240VAC/60-250VDC, ports on front)Siemens |
|
SCALANCE XR324-4M EEC (2x 100-240VAC/60-250VDC, ports on front)Siemens |
|
SCALANCE XR324-4M EEC (2x 100-240VAC/60-250VDC, ports on rear)Siemens |
|
SCALANCE XR324-4M EEC (2x 100-240VAC/60-250VDC, ports on rear)Siemens |
|
SCALANCE XR324-4M EEC (2x 24V, ports on front)Siemens |
|
SCALANCE XR324-4M EEC (2x 24V, ports on front)Siemens |
|
SCALANCE XR324-4M EEC (2x 24V, ports on rear)Siemens |
|
SCALANCE XR324-4M EEC (2x 24V, ports on rear)Siemens |
|
SCALANCE XR324-4M PoE (230V, ports on front)Siemens |
|
SCALANCE XR324-4M PoE (230V, ports on front)Siemens |
|
SCALANCE XR324-4M PoE (230V, ports on rear)Siemens |
|
SCALANCE XR324-4M PoE (230V, ports on rear)Siemens |
|
SCALANCE XR324-4M PoE (24V, ports on front)Siemens |
|
SCALANCE XR324-4M PoE (24V, ports on front)Siemens |
|
SCALANCE XR324-4M PoE (24V, ports on rear)Siemens |
|
SCALANCE XR324-4M PoE (24V, ports on rear)Siemens |
|
SCALANCE XR324-4M PoE TS (24V, ports on front)Siemens |
|
SCALANCE XR324-4M PoE TS (24V, ports on front)Siemens |
|
SCALANCE XR524-8C, 1x230VSiemens |
|
SCALANCE XR524-8C, 1x230V (L3 int.)Siemens |
|
SCALANCE XR524-8C, 24VSiemens |
|
SCALANCE XR524-8C, 24V (L3 int.)Siemens |
|
SCALANCE XR524-8C, 2x230VSiemens |
|
SCALANCE XR524-8C, 2x230V (L3 int.)Siemens |
|
SCALANCE XR526-8C, 1x230VSiemens |
|
SCALANCE XR526-8C, 1x230V (L3 int.)Siemens |
|
SCALANCE XR526-8C, 24VSiemens |
|
SCALANCE XR526-8C, 24V (L3 int.)Siemens |
|
SCALANCE XR526-8C, 2x230VSiemens |
|
SCALANCE XR526-8C, 2x230V (L3 int.)Siemens |
|
SCALANCE XR528-6MSiemens |
|
SCALANCE XR528-6M (2HR2, L3 int.)Siemens |
|
SCALANCE XR528-6M (2HR2)Siemens |
|
SCALANCE XR528-6M (L3 int.)Siemens |
|
SCALANCE XR552-12MSiemens |
|
SCALANCE XR552-12M (2HR2, L3 int.)Siemens |
|
SCALANCE XR552-12M (2HR2)Siemens |
|
SCALANCE XR552-12M (2HR2)Siemens |
|
SIMATIC CFU DIQSiemens |
|
SIMATIC CFU PASiemens |
|
SIMATIC CFU PASiemens |
|
SIMATIC ET 200pro IM 154-8 PN/DP CPUSiemens |
|
SIMATIC ET 200pro IM 154-8F PN/DP CPUSiemens |
|
SIMATIC ET 200pro IM 154-8FX PN/DP CPUSiemens |
|
SIMATIC ET 200S IM 151-8 PN/DP CPUSiemens |
|
SIMATIC ET 200S IM 151-8F PN/DP CPUSiemens |
|
SIMATIC ET 200SP CPU 1510SP F-1 PNSiemens |
|
SIMATIC ET 200SP CPU 1510SP-1 PNSiemens |
|
SIMATIC ET 200SP CPU 1512SP F-1 PNSiemens |
|
SIMATIC ET 200SP CPU 1512SP-1 PNSiemens |
|
SIMATIC ET 200SP HA IM155-6 PNSiemens |
|
SIMATIC S7-1500 CPU 1511-1 PNSiemens |
|
SIMATIC S7-1500 CPU 1511F-1 PNSiemens |
|
SIMATIC S7-1500 CPU 1513-1 PNSiemens |
|
SIMATIC S7-1500 CPU 1515-2 PNSiemens |
|
SIMATIC S7-1500 CPU 1515F-2 PNSiemens |
|
SIMATIC S7-1500 CPU 1516-3 PN/DPSiemens |
|
SIMATIC S7-1500 CPU 1516F-3 PN/DPSiemens |
|
SIMATIC S7-300 CPU 314C-2 PN/DPSiemens |
|
SIMATIC S7-300 CPU 315-2 PN/DPSiemens |
|
SIMATIC S7-300 CPU 315F-2 PN/DPSiemens |
|
SIMATIC S7-300 CPU 315T-3 PN/DPSiemens |
|
SIMATIC S7-300 CPU 317-2 PN/DPSiemens |
|
SIMATIC S7-300 CPU 317F-2 PN/DPSiemens |
|
SIMATIC S7-300 CPU 317T-3 PN/DPSiemens |
|
SIMATIC S7-300 CPU 317TF-3 PN/DPSiemens |
|
SIMATIC S7-300 CPU 319-3 PN/DPSiemens |
|
SIMATIC S7-300 CPU 319F-3 PN/DPSiemens |
|
SIMATIC S7-400 CPU 412-2 PN V7Siemens |
|
SIMATIC S7-400 CPU 414-3 PN/DP V7Siemens |
|
SIMATIC S7-400 CPU 414F-3 PN/DP V7Siemens |
|
SIMATIC S7-400 CPU 416-3 PN/DP V7Siemens |
|
SIMATIC S7-400 CPU 416F-3 PN/DP V7Siemens |
|
SIMATIC S7-400 H V6 CPU family (incl. SIPLUS variants)Siemens |
|
SIMATIC S7-410 V10 CPU family (incl. SIPLUS variants)Siemens |
|
SIMATIC S7-410 V8 CPU family (incl. SIPLUS variants)Siemens |
|
SIMIT UNIT V10Siemens |
|
SIMIT UNIT V11Siemens |
|
SINAMICS CBE20Siemens |
|
SINAMICS G115DSiemens |
|
SINAMICS G120 (incl. SIPLUS variants)Siemens |
|
SINAMICS G120CSiemens |
|
SINAMICS G120DSiemens |
|
SINAMICS G120XSiemens |
|
SINAMICS G120XASiemens |
|
SINAMICS G130Siemens |
|
SINAMICS G150Siemens |
|
SINAMICS S110Siemens |
|
SINAMICS S120 (incl. SIPLUS variants)Siemens |
|
SINAMICS S150Siemens |
|
SINUMERIK 840D slSiemens |
|
SIPLUS ET 200S IM 151-8 PN/DP CPUSiemens |
|
SIPLUS ET 200S IM 151-8F PN/DP CPUSiemens |
|
SIPLUS NET IE/PB link PN IOSiemens |
|
SIPLUS S7-300 CPU 314C-2 PN/DPSiemens |
|
SIPLUS S7-300 CPU 315-2 PN/DPSiemens |
|
SIPLUS S7-300 CPU 315F-2 PN/DPSiemens |
|
SIPLUS S7-300 CPU 317-2 PN/DPSiemens |
|
SIPLUS S7-300 CPU 317F-2 PN/DPSiemens |
|
SIPLUS S7-400 CPU 414-3 PN/DP V7Siemens |
|
SIPLUS S7-400 CPU 416-3 PN/DP V7Siemens |
|
SITOP PSU8600 1AC 20 A/4x5 A PNSiemens |
|
SITOP PSU8600 3AC 20 A PNSiemens |
|
SITOP PSU8600 3AC 20 A/4x5 A PNSiemens |
|
SITOP PSU8600 3AC 40 A PNSiemens |
|
SITOP PSU8600 3AC 40 A/4x10 A PNSiemens |
|
SITOP PSU8600 3AC 40 A/4x10A EIPSiemens |
|
SITOP UPS1600 10 A Ethernet/ PROFINETSiemens |
|
SITOP UPS1600 20 A Ethernet/ PROFINETSiemens |
|
SITOP UPS1600 40 A Ethernet/ PROFINETSiemens |
|
SITOP UPS1600 EX 20 A Ethernet PROFINETSiemens |
|
References
Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.