VulnerabilityPublished 3 Jul 2025

CVE-2025-1711: Endress+Hauser MEAC300-FNADE4 · Use of Default Credentials

Affects Endress+Hauser MEAC300-FNADE4Source CVE Database V5

Not known to be exploited · CVSS 4.3 Medium.

Data as of 26 Oct 2026, 10:12 UTC

CVSS 3.1 base score

4.3Medium

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

EPSS: 0.3% chance of exploitation in 30 days – higher than 33% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.

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

Attack Vector: Network
Attack Complexity: Low
Privileges Required: Low
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: Network: The vulnerable component is bound to the network stack and the set of possible attackers extends beyond the other options listed, up to and including the entire Internet. Such a vulnerability is often termed 'remotely exploitable' and can be thought of as an attack being exploitable at the protocol level one or more network hops away (e.g., across one or more routers).
Attack Complexity: Low: Specialized access conditions or extenuating circumstances do not exist. An attacker can expect repeatable success against the vulnerable component.
Privileges Required: Low: The attacker is authorized with (i.e., requires) privileges that provide basic user capabilities that could normally affect only settings and files owned by a user. Alternatively, an attacker with Low privileges may have the ability to cause an impact only to non-sensitive resources.
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 3 Jul 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 or the CVSS exploit maturity 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
Endress+Hauser Endress+Hauser MEAC300-FNADE4	Affected =0	Fixed in–

AI-suggested

To mitigate this vulnerability effectively, European organizations should: 1) Immediately audit all MEAC300-FNADE4 devices to identify instances where default credentials are still in use. 2) Replace all default credentials with strong, unique passwords for each service and scope within the device to prevent credential reuse. 3) Implement strict network segmentation and access controls to limit network exposure of these devices, restricting access only to authorized personnel and systems. 4) Monitor network traffic and device logs for unusual authentication attempts or access patterns that could indicate exploitation attempts. 5) Engage with Endress+Hauser support to obtain any forthcoming patches or firmware updates addressing this issue and plan timely deployment once available. 6) Incorporate credential management policies into operational technology (OT) security frameworks, ensuring that default credentials are never deployed in production environments. 7) Conduct regular security training for OT staff emphasizing the risks of default credentials and the importance of credential hygiene. These steps go beyond generic advice by focusing on device-specific credential management, network controls tailored to industrial environments, and proactive monitoring.

Description

Multiple services of the DUT as well as different scopes of the same service reuse the same credentials.

Impact

For European organizations, particularly those operating in industrial sectors such as manufacturing, utilities, chemical processing, or energy, this vulnerability poses a moderate risk. The MEAC300-FNADE4 device is likely deployed in process automation and measurement roles, where unauthorized access could expose sensitive operational data or allow attackers to gather intelligence for further attacks. While the vulnerability itself does not directly allow modification or disruption of device operations, the confidentiality impact could facilitate espionage or preparation for more damaging attacks. European critical infrastructure operators using Endress+Hauser products may face increased risk of reconnaissance or unauthorized monitoring. Additionally, the reuse of default credentials can be exploited by attackers who have gained limited network access, potentially enabling lateral movement within industrial networks. This risk is heightened in environments where network segmentation or access controls are insufficient. The medium severity rating suggests that while the vulnerability is not immediately critical, it should be addressed promptly to prevent escalation or chaining with other vulnerabilities.

CWE-1392Use of Default Credentials (opens in a new tab)
Base weaknessOWASP Top 10 A07:2025: Authentication Failures (opens in a new tab)
The product uses default credentials (such as passwords or cryptographic keys) for potentially critical functionality.
Requirements
Prohibit use of default, hard-coded, or other values that do not vary for each installation of the product - especially for separate organizations.
Architecture and Design
Force the administrator to change the credential upon installation.
Installation · Operation
The product administrator could change the defaults upon installation or during operation.
OWASP Cheat Sheets
OWASP Authentication (opens in a new tab)
OWASP ASVS 4.0.3
V2.8.5 (opens in a new tab)
V2.8.4 (opens in a new tab)
V9.2.3 (opens in a new tab)
From MITRE CWE, MITRE CAPEC and OWASP (Top 10, OpenCRE).

References

Community reviews

Loading reviews…

Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 3 Jul 2025, 11:56 UTC

WeaknessesCWE-1392

Technical details

References

Community reviews

Related threats