CVE-2021-25667
published 2021-03-15CVE-2021-25667: A vulnerability has been identified in RUGGEDCOM RM1224 (All versions >= V4.3 and = V4.3 and = V4.3 and = V2.0 and < V2.1.3), SCALANCE XB-200 (All versions <…
PriorityP350high8.8CVSS 3.1
AVAACLPRNUINSUCHIHAH
EPSS
0.85%
54.0th percentile
A vulnerability has been identified in RUGGEDCOM RM1224 (All versions >= V4.3 and = V4.3 and = V4.3 and = 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.
Affected
31 ranges· showing 25
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| siemens | ruggedcom_rm1224 | — | — |
| siemens | ruggedcom_rm1224_firmware | >= 4.3 < 6.4 | 6.4 |
| siemens | scalance_m-800 | — | — |
| siemens | scalance_m-800_firmware | >= 4.3 < 6.4 | 6.4 |
| siemens | scalance_s615 | — | — |
| siemens | scalance_s615_firmware | >= 4.3 < 6.4 | 6.4 |
| siemens | scalance_sc-600_family | — | — |
| siemens | scalance_sc622-2c_firmware | <= 2.0 | — |
| siemens | scalance_sc622-2c_firmware | >= 2.1 < 2.1.3 | 2.1.3 |
| siemens | scalance_sc632-2c_firmware | <= 2.0 | — |
| siemens | scalance_sc632-2c_firmware | >= 2.1 < 2.1.3 | 2.1.3 |
| siemens | scalance_sc636-2c_firmware | <= 2.0 | — |
| siemens | scalance_sc636-2c_firmware | >= 2.1 < 2.1.3 | 2.1.3 |
| siemens | scalance_sc642-2c_firmware | <= 2.0 | — |
| siemens | scalance_sc642-2c_firmware | >= 2.1 < 2.1.3 | 2.1.3 |
| siemens | scalance_sc646-2c_firmware | <= 2.0 | — |
| siemens | scalance_sc646-2c_firmware | >= 2.1 < 2.1.3 | 2.1.3 |
| siemens | scalance_x300wg_firmware | < 4.1 | 4.1 |
| siemens | scalance_xb-200 | — | — |
| siemens | scalance_xb-200_firmware | < 4.1 | 4.1 |
| siemens | scalance_xc-200 | — | — |
| siemens | scalance_xc-200_firmware | < 4.1 | 4.1 |
| siemens | scalance_xf-200ba | — | — |
| siemens | scalance_xf-200ba_firmware | < 4.1 | 4.1 |
| siemens | scalance_xm400 | — | — |
CVSS provenance
nvdv3.18.8HIGHCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
nvdv2.05.8MEDIUMAV:A/AC:L/Au:N/C:P/I:P/A:P
Stop checking back — get the weekly exploitation signal.
Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.
VulDB
Siemens RUGGEDCOM RM1224 STP BPDU Frame stack-based overflow (ssa-979775)
vuldb·2026-06-03·CVSS 8.8
CVE-2021-25667 [HIGH] Siemens RUGGEDCOM RM1224 STP BPDU Frame stack-based overflow (ssa-979775)
A vulnerability, which was classified as critical, was found in Siemens RUGGEDCOM RM1224, SCALANCE M-800, SCALANCE S615, SCALANCE SC-600 Family, SCALANCE X300WG, SCALANCE XM400, SCALANCE XR500 and SCALANCE Xx200 Family. Affected by this vulnerability is an unknown functionality of the component STP BPDU Frame Handler. Executing a manipulation can lead to stack-based buffer overflow.
This vulnerability is tracked as CVE-2021-25667. The attack can be launched remotely. No exploit exists.
You should upgrade the affected component.
GHSA
GHSA-p672-97f8-chmq: A vulnerability has been identified in RUGGEDCOM RM1224 (All versions >= V4
ghsa_unreviewed·2022-05-24
CVE-2021-25667 [HIGH] CWE-121 GHSA-p672-97f8-chmq: A vulnerability has been identified in RUGGEDCOM RM1224 (All versions >= V4
A vulnerability has been identified in RUGGEDCOM RM1224 (All versions >= V4.3), SCALANCE M-800 (All versions >= V4.3), SCALANCE S615 (All versions >= V4.3), SCALANCE SC-600 Family (All versions >= V2.0 and < V2.1.3), SCALANCE X300WG (All versions < V4.1), SCALANCE XM400 (All versions < V6.2), SCALANCE XR500 (All versions < V6.2), SCALANCE Xx200 Family (All versions < V4.1). 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.
CISA ICS
Siemens SCALANCE and RUGGEDCOM Devices (Update A)
cisa_ics·2021-03-09
Siemens SCALANCE and RUGGEDCOM Devices (Update A)
## Archived Content In an effort to keep CISA.gov current, the archive contains outdated information that may not reflect current policy or programs.
ICS Advisory
##
Siemens SCALANCE and RUGGEDCOM Devices (Update A)
Last RevisedApril 13, 2021
Alert CodeICSA-21-068-03
## 1. EXECUTIVE SUMMARY
- CVSS v3 8.8
- ATTENTION: Exploitable remotely/low attack complexity
- Vendor: Siemens
- Equipment: SCALANCE and RUGGEDCOM Devices
- Vulnerability: Stack-based Buffer Overflow
## 2. UPDATE INFORMATION
This updated advisory is a follow-up to the original advisory titled ICSA-21-068-03 Siemens SCALANCE and RUGGEDCOM Devices that was published March 9, 2021, to the ICS webpage on us-cert.cisa.gov.
## 3. RISK EVALUATION
Successful exploitation of thi
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2021-03-15
Published