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CVE-2021-25671

MEDIUM

4.3

CVSS Score

Published: July 13, 2021 at 11:02 AM UTC

Updated: June 17, 2026 at 03:42 AM UTC

6 products affected across 1 vendorRwg1.m12d FirmwareRwg1.m12 FirmwareRwg1.m8 Firmware

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Severity

MEDIUM4.3

Exploit prediction

EPSS 0.4%

Description

A vulnerability has been identified in RWG1.M12 (All versions < V1.16.16), RWG1.M12D (All versions < V1.16.16), RWG1.M8 (All versions < V1.16.16). Sending specially crafted ARP packets to an affected device could cause a partial denial-of-service, preventing the device to operate normally. A restart is needed to restore normal operations.

Affected

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

Rwg1.m12 Firmware · Siemens

95%

v < 1.16.16All versions < V1.16.16

Affected range stops below 1.16.16, so it looks safe — our inference, not a vendor statement

siemens-rwg1-m12 (same device)

Rwg1.m12d Firmware · Siemens

95%

v < 1.16.16All versions < V1.16.16

Affected range stops below 1.16.16, so it looks safe — our inference, not a vendor statement

siemens-rwg1-m12d (same device)

Rwg1.m8 Firmware · Siemens

95%

v < 1.16.16All versions < V1.16.16

Affected range stops below 1.16.16, so it looks safe — our inference, not a vendor statement

siemens-rwg1-m8 (same device)

Rwg1.M12 · Siemensdevice

80%

All versions

Rwg1.M12D · Siemensdevice

80%

All versions

Rwg1.M8 · Siemensdevice

80%

All versions

Remediation

No guide yet

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

Patch and advisory references

https://cert-portal.siemens.com/productcert/pdf/ssa-448291.pdf

References (1)

x_refsource_MISCPatchVendor Advisory

Source: [email protected]

https://cert-portal.siemens.com/productcert/pdf/ssa-448291.pdf

CVSS

4.3MEDIUM[email protected]

Attack Vector: ADJACENT_NETWORK
Complexity: LOW
Privileges: NONE
User Interaction: NONE
Scope: UNCHANGED
Confidentiality: NONE
Integrity: NONE
Availability: LOW

Vector?

Quick Info

StatusMODIFIED

CWE

CWE-770

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