Buffer overflow in Siemens Ruggedcom Rm1224
CVE-2021-25667
A vulnerability has been identified in RUGGEDCOM RM1224 (All versions >= V4.3 and < V6.4), SCALANCE M-800 (All versions >= V4.3 and < V6.4), SCALANCE S615 (All versions >= V4.3 and < V6.4), SCALANCE SC-600 Family (All versions >= V2.0 and < V2.1.3), SCALANCE XB-200 (All versions < V4.1), SCALANCE XC-200 (All versions < V4.1), SCALANCE XF-200BA (All versions < V4.1), SCALANCE XM400 (All versions < V6.2), SCALANCE XP-200 (All versions < V4.1), SCALANCE XR-300WG (All versions < V4.1), SCALANCE XR500 (All versions < V6.2). Affected devices contain a stack-based buffer overflow vulnerability in the handling of STP BPDU frames that could allow a remote attacker to trigger a denial-of-service condition or potentially remote code execution. Successful exploitation requires the passive listening feature of the device to be active.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.010 (60.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 61st percentile — 60.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.009 · newest: 0.010 · change: +0.001
Affected products
- Siemens Ruggedcom Rm1224 — versions All versions >= V4.3 and < V6.4
- Siemens Ruggedcom Rm1224
- Siemens Ruggedcom Rm1224 Firmware
- Siemens Scalance M-800 — versions All versions >= V4.3 and < V6.4
- Siemens Scalance M-800
- Siemens Scalance M-800 Firmware
- Siemens Scalance S615 — versions All versions >= V4.3 and < V6.4
- Siemens Scalance S615
- Siemens Scalance S615 Firmware
- Siemens Scalance Sc-600 Family — versions All versions >= V2.0 and < V2.1.3
Weakness classification (CWE)
References
- cert-portal.siemens.com/productcert/pdf/ssa-979775.pdf (Patch, Vendor Advisory)
- us-cert.cisa.gov/ics/advisories/icsa-21-068-03 (US Government Resource, Patch, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-25667?
- CVE-2021-25667 is a high-severity vulnerability in Siemens Ruggedcom Rm1224, classified under Stack-based Buffer Overflow. CVSS score: 8.8/10. Published 2021-03-15.
- How severe is CVE-2021-25667?
- High severity. CVSS v3 base score is 8.8 out of 10.