CVE-2021-37174

CVE-2021-37174 is a high-severity vulnerability in Siemens Ruggedcom Rox Rx1400 Firmware with a CVSS 3.x base score of 8.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-250.

Key facts

• Severity: High (CVSS 3.x base score 8.8)
• CVSS v2: 9.0
• EPSS exploit prediction: 1% (62nd percentile)
• Actively exploited: Not listed in CISA KEV
• Weakness: CWE-250
• Affected product: Siemens Ruggedcom Rox Rx1400 Firmware
• Published: 2021-09-14
• Last modified: 2026-06-17

Description

A vulnerability has been identified in RUGGEDCOM ROX MX5000 (All versions < V2.14.1), RUGGEDCOM ROX RX1400 (All versions < V2.14.1), RUGGEDCOM ROX RX1500 (All versions < V2.14.1), RUGGEDCOM ROX RX1501 (All versions < V2.14.1), RUGGEDCOM ROX RX1510 (All versions < V2.14.1), RUGGEDCOM ROX RX1511 (All versions < V2.14.1), RUGGEDCOM ROX RX1512 (All versions < V2.14.1), RUGGEDCOM ROX RX1524 (All versions < V2.14.1), RUGGEDCOM ROX RX1536 (All versions < V2.14.1), RUGGEDCOM ROX RX5000 (All versions < V2.14.1). The affected devices have a privilege escalation vulnerability, if exploited, an attacker could gain root user access.

Frequently asked questions

What is CVE-2021-37174?

A vulnerability has been identified in RUGGEDCOM ROX MX5000 (All versions < V2.14.1), RUGGEDCOM ROX RX1400 (All versions < V2.14.1), RUGGEDCOM ROX RX1500 (All versions < V2.14.1), RUGGEDCOM ROX RX1501 (All versions < V2.14.1), RUGGEDCOM ROX RX1510 (All versions < V2.14.1), RUGGEDCOM ROX RX1511 (All versions < V2.14.1), RUGGEDCOM ROX RX1512 (All versions < V2.14.1), RUGGEDCOM ROX RX1524 (All versions < V2.14.1), RUGGEDCOM ROX RX1536 (All versions < V2.14.1), RUGGEDCOM ROX RX5000 (All versions < V2.14.1). The affected devices have a privilege escalation vulnerability, if exploited, an attacker could gain root user access.

How severe is CVE-2021-37174?

CVE-2021-37174 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-37174 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (62nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-37174?

CVE-2021-37174 primarily affects Siemens Ruggedcom Rox Rx1400 Firmware. In total, 10 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-37174?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2021-37174 published?

CVE-2021-37174 was published on 2021-09-14 and last updated on 2026-06-17.

References

• https://cert-portal.siemens.com/productcert/pdf/ssa-150692.pdf

Affected products (10)

• cpe:2.3:o:siemens:ruggedcom_rox_rx1400_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:siemens:ruggedcom_rox_mx5000_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:siemens:ruggedcom_rox_rx1500_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:siemens:ruggedcom_rox_rx1501_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:siemens:ruggedcom_rox_rx1510_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:siemens:ruggedcom_rox_rx1511_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:siemens:ruggedcom_rox_rx1512_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:siemens:ruggedcom_rox_rx1524_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:siemens:ruggedcom_rox_rx1536_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:siemens:ruggedcom_rox_rx5000_firmware:*:*:*:*:*:*:*:*

More vulnerabilities in Siemens Ruggedcom Rox Rx1400 Firmware

• CVE-2019-17006 — Critical (CVSS 9.8): In Network Security Services (NSS) before 3.46, several cryptographic primitives had missing length checks. In cases…
• CVE-2025-40949 — Critical (CVSS 9.1): A vulnerability has been identified in RUGGEDCOM ROX MX5000 (All versions < V2.17.1), RUGGEDCOM ROX MX5000RE (All…
• CVE-2023-36755 — Critical (CVSS 9.1): A vulnerability has been identified in RUGGEDCOM ROX MX5000 (All versions < V2.16.0), RUGGEDCOM ROX MX5000RE (All…
• CVE-2023-36754 — Critical (CVSS 9.1): A vulnerability has been identified in RUGGEDCOM ROX MX5000 (All versions < V2.16.0), RUGGEDCOM ROX MX5000RE (All…
• CVE-2023-36753 — Critical (CVSS 9.1): A vulnerability has been identified in RUGGEDCOM ROX MX5000 (All versions < V2.16.0), RUGGEDCOM ROX MX5000RE (All…
• CVE-2023-36752 — Critical (CVSS 9.1): A vulnerability has been identified in RUGGEDCOM ROX MX5000 (All versions < V2.16.0), RUGGEDCOM ROX MX5000RE (All…

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