CVE-2025-40935

Severity: medium (CVSS 4.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-12-09 · updated 2026-10-07
Weakness: CWE-20

Description

A vulnerability has been identified in RUGGEDCOM RMC8388 V5.X (All versions < V5.10.1), RUGGEDCOM RS416Pv2 V5.X (All versions < V5.10.1), RUGGEDCOM RS416v2 V5.X (All versions < V5.10.1), RUGGEDCOM RS900 (32M) V5.X (All versions < V5.10.1), RUGGEDCOM RS900G (32M) V5.X (All versions < V5.10.1), RUGGEDCOM RSG2100 (32M) V5.X (All versions < V5.10.1), RUGGEDCOM RSG2100P (32M) V5.X (All versions < V5.10.1), RUGGEDCOM RSG2288 V5.X (All versions < V5.10.1), RUGGEDCOM RSG2300 V5.X (All versions < V5.10.1), RUGGEDCOM RSG2300P V5.X (All versions < V5.10.1), RUGGEDCOM RSG2488 V5.X (All versions < V5.10.1), RUGGEDCOM RSG907R (All versions < V5.10.1), RUGGEDCOM RSG908C (All versions < V5.10.1), RUGGEDCOM RSG909R (All versions < V5.10.1), RUGGEDCOM RSG910C (All versions < V5.10.1), RUGGEDCOM RSG920P V5.X (All versions < V5.10.1), RUGGEDCOM RSL910 (All versions < V5.10.1), RUGGEDCOM RST2228 (All versions < V5.10.1), RUGGEDCOM RST2228P (All versions < V5.10.1), RUGGEDCOM RST916C (All versions < V5.10.1), RUGGEDCOM RST916P (All versions < V5.10.1). Affected devices do not properly validate input during the TLS certificate upload process of the web service. This could allow an authenticated remote attacker to trigger a device crash and reboot, leading to a temporary Denial of Service on the device.

Affected products

Siemens RUGGEDCOM RMC8388 V5.X: before V5.10.1 — fixed in V5.10.1
Siemens RUGGEDCOM RS416Pv2 V5.X: before V5.10.1 — fixed in V5.10.1
Siemens RUGGEDCOM RS416v2 V5.X: before V5.10.1 — fixed in V5.10.1
Siemens RUGGEDCOM RS900 (32M) V5.X: before V5.10.1 — fixed in V5.10.1
Siemens RUGGEDCOM RS900G (32M) V5.X: before V5.10.1 — fixed in V5.10.1
Siemens RUGGEDCOM RSG2100 (32M) V5.X: before V5.10.1 — fixed in V5.10.1
Siemens RUGGEDCOM RSG2100P (32M) V5.X: before V5.10.1 — fixed in V5.10.1
Siemens RUGGEDCOM RSG2288 V5.X: before V5.10.1 — fixed in V5.10.1
Siemens RUGGEDCOM RSG2300 V5.X: before V5.10.1 — fixed in V5.10.1
Siemens RUGGEDCOM RSG2300P V5.X: before V5.10.1 — fixed in V5.10.1
Siemens RUGGEDCOM RSG2488 V5.X: before V5.10.1 — fixed in V5.10.1
Siemens RUGGEDCOM RSG907R: before V5.10.1 — fixed in V5.10.1
Siemens RUGGEDCOM RSG908C: before V5.10.1 — fixed in V5.10.1
Siemens RUGGEDCOM RSG909R: before V5.10.1 — fixed in V5.10.1
Siemens RUGGEDCOM RSG910C: before V5.10.1 — fixed in V5.10.1
Siemens RUGGEDCOM RSG920P V5.X: before V5.10.1 — fixed in V5.10.1
Siemens RUGGEDCOM RSL910: before V5.10.1 — fixed in V5.10.1
Siemens RUGGEDCOM RST2228: before V5.10.1 — fixed in V5.10.1
Siemens RUGGEDCOM RST2228P: before V5.10.1 — fixed in V5.10.1
Siemens RUGGEDCOM RST916C: before V5.10.1 — fixed in V5.10.1
Siemens RUGGEDCOM RST916P: before V5.10.1 — fixed in V5.10.1

How to fix

Upgrade to a fixed version: Siemens RUGGEDCOM RMC8388 V5.X V5.10.1; Siemens RUGGEDCOM RS416Pv2 V5.X V5.10.1; Siemens RUGGEDCOM RS416v2 V5.X V5.10.1; Siemens RUGGEDCOM RS900 (32M) V5.X V5.10.1; Siemens RUGGEDCOM RS900G (32M) V5.X V5.10.1; Siemens RUGGEDCOM RSG2100 (32M) V5.X V5.10.1; Siemens RUGGEDCOM RSG2100P (32M) V5.X V5.10.1; Siemens RUGGEDCOM RSG2288 V5.X V5.10.1; Siemens RUGGEDCOM RSG2300 V5.X V5.10.1; Siemens RUGGEDCOM RSG2300P V5.X V5.10.1; Siemens RUGGEDCOM RSG2488 V5.X V5.10.1; Siemens RUGGEDCOM RSG907R V5.10.1. Check the vendor advisory for mitigations.

References

https://cert-portal.siemens.com/productcert/html/ssa-763474.html

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