Resource exhaustion in Siemens Rwg1.m12
CVE-2021-25671
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.
EPSS exploit prediction
EPSS: 0.004 (29.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 29th percentile — 29.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
- Siemens Rwg1.m12 — versions All versions < V1.16.16
- Siemens Rwg1.m12d — versions All versions < V1.16.16
- Siemens Rwg1.m12d Firmware
- Siemens Rwg1.m12 Firmware
- Siemens Rwg1.m8 — versions All versions < V1.16.16
- Siemens Rwg1.m8 Firmware
Weakness classification (CWE)
References
- cert-portal.siemens.com/productcert/pdf/ssa-448291.pdf (Patch, Vendor Advisory)
Frequently asked questions
- What is CVE-2021-25671?
- CVE-2021-25671 is a medium-severity vulnerability in Siemens Rwg1.m12, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 4.3/10. Published 2021-07-13.
- How severe is CVE-2021-25671?
- Medium severity. CVSS v3 base score is 4.3 out of 10.