CVE-2025-40803VulnerabilityPublished 9 Sep 2025

CVE-2025-40803: Siemens RUGGEDCOM RST2428P · Information Exposure

Affects Siemens RUGGEDCOM RST2428PSource CVE Database V5

Not known to be exploited · CVSS 3.1 Low.

Data as of 26 Oct 2026, 08:11 UTC

CVSS 3.1 base score

3.1Low

How severe the flaw is on the 0–10 CVSS scale.

EPSS: 0.1% chance of exploitation in 30 days – higher than 6% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.

CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N

Attack Vector: Adjacent
Attack Complexity: High
Privileges Required: None
User Interaction: None
Scope: Unchanged
Confidentiality: Low
Integrity: None
Availability: None

Bold values are the worst case: easiest to exploit or largest impact.

Attack Vector: Adjacent: The vulnerable component is bound to the network stack, but the attack is limited at the protocol level to a logically adjacent topology. This can mean an attack must be launched from the same shared physical (e.g., Bluetooth or IEEE 802.11) or logical (e.g., local IP subnet) network, or from within a secure or otherwise limited administrative domain (e.g., MPLS, secure VPN to an administrative network zone).
Attack Complexity: High: A successful attack depends on conditions beyond the attacker's control. That is, a successful attack cannot be accomplished at will, but requires the attacker to invest in some measurable amount of effort in preparation or execution against the vulnerable component before a successful attack can be expected. For example, a successful attack may require an attacker to: gather knowledge about the environment in which the vulnerable target/component exists; prepare the target environment to improve exploit reliability; or inject themselves into the logical network path between the target and the resource requested by the victim in order to read and/or modify network communications (e.g., a man in the middle attack).
Privileges Required: None: The attacker is unauthorized prior to attack, and therefore does not require any access to settings or files to carry out an attack.
User Interaction: None: The vulnerable system can be exploited without any interaction from any user.
Scope: Unchanged: An exploited vulnerability can only affect resources managed by the same security authority. In this case, the vulnerable component and the impacted component are either the same, or both are managed by the same security authority.
Confidentiality: Low: There is some loss of confidentiality. Access to some restricted information is obtained, but the attacker does not have control over what information is obtained, or the amount or kind of loss is limited. The information disclosure does not cause a direct, serious loss to the impacted component.
Integrity: None: There is no loss of integrity within the impacted component.
Availability: None: There is no impact to availability within the impacted component.

Definitions: FIRST CVSS v3.1 specification.

Exploitation evidence

Disclosed: evidence found.
CVE published 9 Sep 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponised: Public exploit code exists in Metasploit or Exploit-DB, or CISA SSVC reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Affected software

Product	Affected	Fixed in
Siemens RUGGEDCOM RST2428P	Affected =0	Fixed in–

AI-suggested

1. Network Segmentation: Ensure that RUGGEDCOM RST2428P devices are placed within properly segmented and isolated network zones, restricting access to trusted devices only. 2. Access Controls: Implement strict access control lists (ACLs) and firewall rules to limit adjacent network access to these devices, minimizing exposure to unauthorized actors. 3. Monitoring and Logging: Enable detailed logging and continuous monitoring of network traffic to and from RUGGEDCOM devices to detect unusual access patterns or reconnaissance attempts. 4. Vendor Coordination: Engage with Siemens support channels to obtain updates on patches or firmware upgrades addressing this vulnerability and apply them promptly once available. 5. Incident Response Preparedness: Update incident response plans to include scenarios involving information disclosure from industrial devices and conduct tabletop exercises accordingly. 6. Network Hardening: Disable unnecessary services and interfaces on the RUGGEDCOM devices to reduce the attack surface. 7. Physical Security: Ensure physical security controls are in place to prevent unauthorized local access to the devices, which could compound network-based risks.

Description

A vulnerability has been identified in RUGGEDCOM RST2428P (6GK6242-6PA00) (All versions). The affected device exposes certain non-critical information from the device. This could allow an unauthenticated attacker to access sensitive data, potentially leading to a breach of confidentiality.

Impact

For European organizations, particularly those operating critical infrastructure such as energy, transportation, and industrial manufacturing sectors, this vulnerability poses a confidentiality risk. Although the exposed information is characterized as non-critical, any leakage of sensitive device data can facilitate targeted attacks, including social engineering, network mapping, or exploitation of other vulnerabilities. Given the RUGGEDCOM RST2428P's role in industrial networks, unauthorized disclosure could undermine operational security and trust in network integrity. The low severity and high attack complexity reduce the immediate risk, but the lack of authentication requirement means that any attacker with access to the adjacent network segment could attempt exploitation. This is particularly relevant for organizations with less segmented or poorly secured industrial networks. The absence of known exploits reduces urgency but does not eliminate the risk, especially as threat actors often develop exploits post-disclosure. European entities relying on Siemens industrial networking equipment should consider this vulnerability in their risk assessments and incident response planning.

CWE-200Exposure of Sensitive Information to an Unauthorized Actor (opens in a new tab)
Class weaknessLikelihood of exploit: HighCWE Top 25 (2025): #20OWASP Top 10 A01:2025: Broken Access Control (opens in a new tab)
The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.
MITRE discourages mapping vulnerabilities to this broad entry; the root cause is usually a more specific weakness.
Architecture and Design · Separation of Privilege
Compartmentalize the system to have "safe" areas where trust boundaries can be unambiguously drawn. Do not allow sensitive data to go outside of the trust boundary and always be careful when interfacing with a compartment outside of the safe area.
OWASP Cheat Sheets
Error Handling (opens in a new tab)
Logging (opens in a new tab)
Authorization (opens in a new tab)
OWASP ASVS 4.0.3
V8.3.4 (opens in a new tab)
V14.3.3 (opens in a new tab)
V7.3.3 (opens in a new tab)
Attack patterns
Subverting Environment Variable Values (opens in a new tab)
ICMP Echo Request Ping (opens in a new tab)
TCP SYN Scan (opens in a new tab)
Enumerate Mail Exchange (MX) Records (opens in a new tab)
DNS Zone Transfers (opens in a new tab)
From MITRE CWE, MITRE CAPEC and OWASP (Top 10, OpenCRE).

References

cert-portal.siemens.com/productcert/html/ssa-494539.html (opens in a new tab)

Community reviews

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Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 9 Sep 2025, 08:59 UTC

WeaknessesCWE-200

Technical details

References

Community reviews

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