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),…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.86%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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.
- CVSS 3.1
- 8.8 HIGHCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.86% probability · 56th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-121, CWE-787
- Affected
- siemens/ruggedcom rm1224 firmware · siemens/scalance m-800 firmware · siemens/scalance s615 firmware · siemens/scalance x300wg firmware · siemens/scalance xm400 firmware · siemens/scalance xr500 firmware · siemens/scalance sc622-2c firmware · siemens/scalance sc632-2c firmware · siemens/scalance sc636-2c firmware · siemens/scalance sc642-2c firmware · siemens/scalance sc646-2c firmware · siemens/scalance xb-200 firmware · siemens/scalance xc-200 firmware · siemens/scalance xf-200ba firmware · siemens/scalance xp-200 firmware
- Source
- productcert@siemens.com
References
- https://cert-portal.siemens.com/productcert/pdf/ssa-979775.pdfPatch, Vendor Advisory
- https://us-cert.cisa.gov/ics/advisories/icsa-21-068-03Patch, Third Party Advisory, US Government Resource
- https://cert-portal.siemens.com/productcert/pdf/ssa-979775.pdfPatch, Vendor Advisory
- https://us-cert.cisa.gov/ics/advisories/icsa-21-068-03Patch, Third Party Advisory, US Government Resource
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.