CyberSecBulletin
CVE-2025-27452NVD status: Analyzed

Endress+Hauser MEAC300-FNADE4: Exposure of Information Through Directory Listing

Published Updated By the CyberSecBulletin desk

CVE-2025-27452 is a high-severity exposure of information through directory listing vulnerability in Endress+Hauser MEAC300-FNADE4 from Endress+Hauser, with a CVSS 3.1 base score of 7.5 out of 10. It can be exploited remotely over the network by an unauthenticated attacker, without any action from a user. Affected Endress+Hauser MEAC300-FNADE4 versions: <=0.16.0 and earlier. The record does not name a fixed version, so check the vendor advisory. There is no confirmed exploitation so far. EPSS estimates a 0.45% chance of exploitation within 30 days, which is low compared with other CVEs.

Next patch cycle

High severity with no evidence of exploitation so far.

What to do

  1. Check which version of Endress+Hauser MEAC300-FNADE4 you run against the affected versions below, and install the vendor's latest release.
  2. Read the advisory on sick.com for workarounds and exact fixed builds.
  3. Until you can update, restrict network access to the affected service so it is not reachable from untrusted networks.

Affected products and versions

VendorProductAffected versionsFixed in
Endress+HauserEndress+Hauser MEAC300-FNADE4<=0.16.0 and earlierNot stated
EndressMeac300-fnade4 Firmware0.16.0 and earlierNot stated

Version data comes from the organisation that assigned the CVE. Confirm against the vendor advisory before deciding you are unaffected.

How the severity score breaks down

Attack vector
NetworkCan be exploited remotely over a network, including the internet.
Attack complexity
LowNo special conditions are needed; the attack works reliably.
Privileges required
NoneNo account or login is needed.
User interaction
NoneNo action by a victim is required.
Scope
UnchangedImpact stays within the vulnerable component.
Confidentiality
HighAll data handled by the component can be read.
Integrity
NoneNothing can be modified.
Availability
NoneAvailability is not affected.

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N. Scored by NVD.

Scoring systemScoreSeverityScored by
CVSS 3.15.3MediumCNA (sick.de)
CVSS 3.17.5HighNVD

Official description

The configuration of the Apache httpd webserver which serves the MEAC300-FNADE4 web application, is partly insecure. There are modules activated that are not required for the operation of the FNADE4 web application. The functionality of the some modules pose a risk to the webserver which enable dircetory listing.

Source: the CVE record as published by its numbering authority, via NVD and CVE.org.

The underlying weakness: Exposure of Information Through Directory Listing

The product inappropriately exposes a directory listing with an index of all the resources located inside of the directory.

How developers prevent this class of flaw

  • Recommendations include restricting access to important directories or files by adopting a need to know requirement for both the document and server root, and turning off features such as Automatic Directory Listings that could expose private files and provide information that could be utilized by an attacker when formulating or conducting an attack.

More Exposure of Information Through Directory Listing vulnerabilities (CWE-548)

Timeline

  1. CVE record published.
  2. CISA published its SSVC assessment (exploitation: none, automatable: yes, technical impact: partial).
  3. Record last changed materially (score, affected products, status or references).

References

Third-party and government advisories

Other references

Other vulnerabilities in Endress+Hauser MEAC300-FNADE4

All Endress+Hauser MEAC300-FNADE4 vulnerabilities

Recent Exposure of Information Through Directory Listing vulnerabilities

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