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CVE-2022-31766

HIGH
8.6
CVSS Score
Published: October 11, 2022 at 12:00 AM UTC
Updated: June 17, 2026 at 04:46 AM UTC
44 products affected across 1 vendorScalance M804PB FirmwareSCALANCE M874-3SCALANCE M876-3

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Severity
HIGH8.6
Exploit prediction
EPSS 1%
SSVC
No known exploit

Description

A vulnerability has been identified in RUGGEDCOM RM1224 LTE(4G) EU (6GK6108-4AM00-2BA2) (All versions < V7.1.2), RUGGEDCOM RM1224 LTE(4G) NAM (6GK6108-4AM00-2DA2) (All versions < V7.1.2), SCALANCE M804PB (6GK5804-0AP00-2AA2) (All versions < V7.1.2), SCALANCE M812-1 ADSL-Router (6GK5812-1AA00-2AA2) (All versions < V7.1.2), SCALANCE M812-1 ADSL-Router (6GK5812-1BA00-2AA2) (All versions < V7.1.2), SCALANCE M816-1 ADSL-Router (6GK5816-1AA00-2AA2) (All versions < V7.1.2), SCALANCE M816-1 ADSL-Router (6GK5816-1BA00-2AA2) (All versions < V7.1.2), SCALANCE M826-2 SHDSL-Router (6GK5826-2AB00-2AB2) (All versions < V7.1.2), SCALANCE M874-2 (6GK5874-2AA00-2AA2) (All versions < V7.1.2), SCALANCE M874-3 (6GK5874-3AA00-2AA2) (All versions < V7.1.2), SCALANCE M876-3 (6GK5876-3AA02-2BA2) (All versions < V7.1.2), SCALANCE M876-3 (ROK) (6GK5876-3AA02-2EA2) (All versions < V7.1.2), SCALANCE M876-4 (6GK5876-4AA10-2BA2) (All versions < V7.1.2), SCALANCE M876-4 (EU) (6GK5876-4AA00-2BA2) (All versions < V7.1.2), SCALANCE M876-4 (NAM) (6GK5876-4AA00-2DA2) (All versions < V7.1.2), SCALANCE MUM853-1 (EU) (6GK5853-2EA00-2DA1) (All versions < V7.1.2), SCALANCE MUM856-1 (EU) (6GK5856-2EA00-3DA1) (All versions < V7.1.2), SCALANCE MUM856-1 (RoW) (6GK5856-2EA00-3AA1) (All versions < V7.1.2), SCALANCE S615 EEC LAN-Router (6GK5615-0AA01-2AA2) (All versions < V7.1.2), SCALANCE S615 LAN-Router (6GK5615-0AA00-2AA2) (All versions < V7.1.2), SCALANCE WAM763-1 (6GK5763-1AL00-7DA0) (All versions >= V1.1.0 < V3.0.0), SCALANCE WAM766-1 (6GK5766-1GE00-7DA0) (All versions >= V1.1.0 < V3.0.0), SCALANCE WAM766-1 (US) (6GK5766-1GE00-7DB0) (All versions >= V1.1.0 < V3.0.0), SCALANCE WAM766-1 EEC (6GK5766-1GE00-7TA0) (All versions >= V1.1.0 < V3.0.0), SCALANCE WAM766-1 EEC (US) (6GK5766-1GE00-7TB0) (All versions >= V1.1.0 < V3.0.0), SCALANCE WUM763-1 (6GK5763-1AL00-3AA0) (All versions >= V1.1.0 < V3.0.0), SCALANCE WUM763-1 (6GK5763-1AL00-3DA0) (All versions >= V1.1.0 < V3.0.0), SCALANCE WUM766-1 (6GK5766-1GE00-3DA0) (All versions >= V1.1.0 < V3.0.0), SCALANCE WUM766-1 (USA) (6GK5766-1GE00-3DB0) (All versions >= V1.1.0 < V3.0.0). Affected devices with TCP Event service enabled do not properly handle malformed packets. This could allow an unauthenticated remote attacker to cause a denial of service condition and reboot the device thus possibly affecting other network resources.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

RUGGEDCOM RM1224 Firmware· Siemens
95%
v < 7.1.2
Affected range stops below 7.1.2, so it looks safe — our inference, not a vendor statement
Scalance M804PB Firmware· Siemens
95%
v < 7.1.2v < V7.1.2
Affected range stops below 7.1.2, so it looks safe — our inference, not a vendor statement
Affected range stops below V7.1.2, so it looks safe — our inference, not a vendor statement
Scalance M812-1 Firmware· Siemens
95%
v < 7.1.2
Affected range stops below 7.1.2, so it looks safe — our inference, not a vendor statement
siemens-scalance-m812-1 (same device)
Scalance M816-1 Firmware· Siemens
95%
v < 7.1.2
Affected range stops below 7.1.2, so it looks safe — our inference, not a vendor statement
siemens-scalance-m816-1 (same device)
Scalance M826-2 Firmware· Siemens
95%
v < 7.1.2
Affected range stops below 7.1.2, so it looks safe — our inference, not a vendor statement
siemens-scalance-m826-2 (same device)
Scalance M874-2 Firmware· Siemens
95%
v < 7.1.2
Affected range stops below 7.1.2, so it looks safe — our inference, not a vendor statement
siemens-scalance-m874-2 (same device)
SCALANCE M874-3· Siemens
95%
v < 7.1.2v < V7.1.2
Affected range stops below 7.1.2, so it looks safe — our inference, not a vendor statement
Affected range stops below V7.1.2, so it looks safe — our inference, not a vendor statement
SCALANCE M876-3· Siemens
95%
v < 7.1.2v < V7.1.2
Affected range stops below 7.1.2, so it looks safe — our inference, not a vendor statement
Affected range stops below V7.1.2, so it looks safe — our inference, not a vendor statement
Scalance M876-4 Firmware· Siemens
95%
v < 7.1.2v < V7.1.2
Affected range stops below 7.1.2, so it looks safe — our inference, not a vendor statement
Affected range stops below V7.1.2, so it looks safe — our inference, not a vendor statement
Scalance Mum853-1 Firmware· Siemens
95%
v < 7.1.2
Affected range stops below 7.1.2, so it looks safe — our inference, not a vendor statement
siemens-scalance-mum853-1 (same device)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (2)

Vendor Advisory
Source: [email protected]
https://cert-portal.siemens.com/productcert/html/ssa-697140.html
Vendor Advisory
Source: [email protected]
https://cert-portal.siemens.com/productcert/pdf/ssa-697140.pdf

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.6HIGHsiemens
Vector?

Quick Info

StatusANALYZED
CWE
CWE-20NVD-CWE-noinfo

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