CVE-2021-25667

8.8 HIGH
Published: March 15, 2021 Modified: June 02, 2026
View on NVD

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.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-979775.pdf
Source: productcert@siemens.com
Patch Vendor Advisory
https://us-cert.cisa.gov/ics/advisories/icsa-21-068-03
Source: productcert@siemens.com
Patch Third Party Advisory US Government Resource
https://cert-portal.siemens.com/productcert/pdf/ssa-979775.pdf
Source: af854a3a-2127-422b-91ae-364da2661108
Patch Vendor Advisory
https://us-cert.cisa.gov/ics/advisories/icsa-21-068-03
Source: af854a3a-2127-422b-91ae-364da2661108
Patch Third Party Advisory US Government Resource

4 reference(s) from NVD

Quick Stats

CVSS v3 Score
8.8 / 10.0
EPSS (Exploit Probability)
0.9%
54th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

Affected Vendors

siemens