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CVE-2021-37182

HIGH
7.5
CVSS Score
Published: June 14, 2022 at 09:21 AM UTC
Updated: June 17, 2026 at 04:00 AM UTC
34 products affected across 1 vendorScalance Xm416-4c FirmwareScalance Xm408-4c L3 FirmwareScalance Xm416-4c L3 Firmware

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Severity
HIGH7.5
Exploit prediction
EPSS 0.6%

Description

A vulnerability has been identified in SCALANCE XM408-4C (All versions < V6.5), SCALANCE XM408-4C (L3 int.) (All versions < V6.5), SCALANCE XM408-8C (All versions < V6.5), SCALANCE XM408-8C (L3 int.) (All versions < V6.5), SCALANCE XM416-4C (All versions < V6.5), SCALANCE XM416-4C (L3 int.) (All versions < V6.5), SCALANCE XR524-8C, 1x230V (All versions < V6.5), SCALANCE XR524-8C, 1x230V (L3 int.) (All versions < V6.5), SCALANCE XR524-8C, 24V (All versions < V6.5), SCALANCE XR524-8C, 24V (L3 int.) (All versions < V6.5), SCALANCE XR524-8C, 2x230V (All versions < V6.5), SCALANCE XR524-8C, 2x230V (L3 int.) (All versions < V6.5), SCALANCE XR526-8C, 1x230V (All versions < V6.5), SCALANCE XR526-8C, 1x230V (L3 int.) (All versions < V6.5), SCALANCE XR526-8C, 24V (All versions < V6.5), SCALANCE XR526-8C, 24V (L3 int.) (All versions < V6.5), SCALANCE XR526-8C, 2x230V (All versions < V6.5), SCALANCE XR526-8C, 2x230V (L3 int.) (All versions < V6.5), SCALANCE XR528-6M (All versions < V6.5), SCALANCE XR528-6M (2HR2) (All versions < V6.5), SCALANCE XR528-6M (2HR2, L3 int.) (All versions < V6.5), SCALANCE XR528-6M (L3 int.) (All versions < V6.5), SCALANCE XR552-12M (All versions < V6.5), SCALANCE XR552-12M (2HR2) (All versions < V6.5), SCALANCE XR552-12M (2HR2) (All versions < V6.5), SCALANCE XR552-12M (2HR2, L3 int.) (All versions < V6.5). The OSPF protocol implementation in affected devices fails to verify the checksum and length fields in the OSPF LS Update messages. An unauthenticated remote attacker could exploit this vulnerability to cause interruptions in the network by sending specially crafted OSPF packets. Successful exploitation requires OSPF to be enabled on an affected device.

Affected

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

Scalance Xm408-4c Firmware· Siemens
95%
v < 6.5All versions < V6.5
Affected range stops below 6.5, so it looks safe — our inference, not a vendor statement
siemens-scalance-xm408-4c (same device)
Scalance Xm408-4c L3 Firmware· Siemens
95%
v < 6.5All versions < V6.5
Affected range stops below 6.5, so it looks safe — our inference, not a vendor statement
siemens-scalance-xm408-4c-l3 (same device)
Scalance Xm408-8c Firmware· Siemens
95%
v < 6.5All versions < V6.5
Affected range stops below 6.5, so it looks safe — our inference, not a vendor statement
siemens-scalance-xm408-8c (same device)
Scalance Xm408-8c L3 Firmware· Siemens
95%
v < 6.5All versions < V6.5
Affected range stops below 6.5, so it looks safe — our inference, not a vendor statement
siemens-scalance-xm408-8c-l3 (same device)
Scalance Xm416-4c Firmware· Siemens
95%
v < 6.5All versions < V6.5
Affected range stops below 6.5, so it looks safe — our inference, not a vendor statement
siemens-scalance-xm416-4c (same device)
Scalance Xm416-4c L3 Firmware· Siemens
95%
v < 6.5All versions < V6.5
Affected range stops below 6.5, so it looks safe — our inference, not a vendor statement
siemens-scalance-xm416-4c-l3 (same device)
Scalance Xr524-8c Firmware· Siemens
95%
v < 6.5
Affected range stops below 6.5, so it looks safe — our inference, not a vendor statement
siemens-scalance-xr524-8c (same device)
Scalance Xr524-8c L3 Firmware· Siemens
95%
v < 6.5
Affected range stops below 6.5, so it looks safe — our inference, not a vendor statement
siemens-scalance-xr524-8c-l3 (same device)
Scalance Xr526-8c Firmware· Siemens
95%
v < 6.5
Affected range stops below 6.5, so it looks safe — our inference, not a vendor statement
siemens-scalance-xr526-8c (same device)
Scalance Xr526-8c L3 Firmware· Siemens
95%
v < 6.5
Affected range stops below 6.5, so it looks safe — our inference, not a vendor statement
siemens-scalance-xr526-8c-l3 (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 (1)

x_refsource_MISCPatchVendor Advisory
Source: [email protected]
https://cert-portal.siemens.com/productcert/pdf/ssa-145224.pdf

CVSS

7.5HIGH[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-354

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