Resource allocation without limits in Siemens RWG1.M12
Priority LOW 20CWE-770Published · Updated
Key facts
- Attack vector
- Adjacent network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · Low
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-770.
Summary
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.
Why it matters now
EPSS 0.00375 31st percentileScored 2026-11-07
Fix Fixed RWG1.M12 (Siemens): V1.16.16RWG1.M12D (Siemens): V1.16.16+1 more product
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Siemens | RWG1.M12 | before V1.16.16 | V1.16.16 | Patch available | CNA |
| Siemens | RWG1.M12D | before V1.16.16 | V1.16.16 | Patch available | CNA |
| Siemens | RWG1.M8 | before V1.16.16 | V1.16.16 | Patch available | CNA |
- RWG1.M12 VendorSiemens Affected before V1.16.16 Fixed in V1.16.16 Patch available CNA
- RWG1.M12D VendorSiemens Affected before V1.16.16 Fixed in V1.16.16 Patch available CNA
- RWG1.M8 VendorSiemens Affected before V1.16.16 Fixed in V1.16.16 Patch available CNA
CPE configurations NVD · 6
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:siemens:rwg1.m12_firmware:*:*:*:*:*:*:*:* | before 1.16.16 | Vulnerable | Siemens |
| cpe:2.3:h:siemens:rwg1.m12:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Siemens |
| cpe:2.3:o:siemens:rwg1.m12d_firmware:*:*:*:*:*:*:*:* | before 1.16.16 | Vulnerable | Siemens |
| cpe:2.3:h:siemens:rwg1.m12d:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Siemens |
| cpe:2.3:o:siemens:rwg1.m8_firmware:*:*:*:*:*:*:*:* | before 1.16.16 | Vulnerable | Siemens |
| cpe:2.3:h:siemens:rwg1.m8:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Siemens |
- cpe:2.3:o:siemens:rwg1.m12_firmware:*:*:*:*:*:*:*:* Versions before 1.16.16 Vulnerable ·Siemens
- cpe:2.3:h:siemens:rwg1.m12:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Siemens
- cpe:2.3:o:siemens:rwg1.m12d_firmware:*:*:*:*:*:*:*:* Versions before 1.16.16 Vulnerable ·Siemens
- cpe:2.3:h:siemens:rwg1.m12d:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Siemens
- cpe:2.3:o:siemens:rwg1.m8_firmware:*:*:*:*:*:*:*:* Versions before 1.16.16 Vulnerable ·Siemens
- cpe:2.3:h:siemens:rwg1.m8:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Siemens
Remediation
- Fix · CNA RWG1.M12 (Siemens) Fixed in V1.16.16
- Fix · CNA RWG1.M12D (Siemens) Fixed in V1.16.16
- Fix · CNA RWG1.M8 (Siemens) Fixed in V1.16.16
Timeline
- 2026-10-02 Threatist record created from CVE-2021-25671
- 2026-10-03 Alias added: GHSA-pj8q-v235-p5pv
References
Sources
- CVE-2021-25671 · CVE Program
- CVE-2021-25671 · NVD
- FIRST EPSS
- GHSA-pj8q-v235-p5pv · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences