CyberSecBulletin
CVE-2025-41690NVD status: Deferred

Promag 10 with HART: Insertion of Sensitive Information into Log File

Published Updated By the CyberSecBulletin desk

CVE-2025-41690 is a high-severity insertion of sensitive information into log file vulnerability in Promag 10 with HART from Endress+Hauser, with a CVSS 3.1 base score of 7.4 out of 10. It can be exploited from the same local network by an attacker with a low-privileged account, but only if a user takes part, for example by opening a link or file. The record lists version 01.00.06 as the first without the flaw, so updating Promag 10 with HART to that release or later removes the exposure. There is no confirmed exploitation so far. EPSS estimates a 0.24% 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. Update Promag 10 with HART to 01.00.06 or a later version.
  2. Update Promag 10 with IO-Link to 01.00.02 or a later version.
  3. Update Promag 10 with Modbus to 01.00.06 or a later version.
  4. Because the attack needs a user to take part, warn users about unexpected links and files related to this product until it is patched.

Affected products and versions

VendorProductAffected versionsFixed in
Endress+HauserPromag 10 with HARTbefore 01.00.0601.00.06
Endress+HauserPromag 10 with IO-Linkbefore 01.00.0201.00.02
Endress+HauserPromag 10 with Modbusbefore 01.00.0601.00.06
Endress+HauserPromass 10 with HARTbefore 01.00.0601.00.06
Endress+HauserPromass 10 with IO-Linkbefore 01.00.0201.00.02
Endress+HauserPromass 10 with Modbusbefore 01.00.0601.00.06

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
AdjacentThe attacker must be on the same local network segment.
Attack complexity
LowNo special conditions are needed; the attack works reliably.
Privileges required
LowA basic user account is enough.
User interaction
RequiredA user must take an action such as opening a file or link.
Scope
UnchangedImpact stays within the vulnerable component.
Confidentiality
HighAll data handled by the component can be read.
Integrity
HighData or code can be modified at will.
Availability
HighThe component can be taken down completely.

Vector: CVSS:3.1/AV:A/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H. Scored by CNA (cert.vde.com).

Official description

A low-privileged attacker in bluetooth range may be able to access the password of a higher-privilege user (Maintenance) by viewing the device’s event log. This vulnerability could allow the Operator to authenticate as the Maintenance user, thereby gaining unauthorized access to sensitive configuration settings and the ability to modify device parameters.

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

The underlying weakness: Insertion of Sensitive Information into Log File

The product writes sensitive information to a log file.

How developers prevent this class of flaw

  • Consider seriously the sensitivity of the information written into log files. Do not write secrets into the log files.
  • Remove debug log files before deploying the application into production.
  • Protect log files against unauthorized read/write.

More Insertion of Sensitive Information into Log File vulnerabilities (CWE-532)

Timeline

  1. CVE record published.
  2. CISA published its SSVC assessment (exploitation: none, automatable: no, technical impact: total).
  3. Record last changed materially (score, affected products, status or references).

References

Recent Insertion of Sensitive Information into Log File vulnerabilities

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