CyberSecBulletin
CVE-2025-0867NVD status: Deferred

SICK MEAC300: Insufficiently Protected Credentials

Published Updated By the CyberSecBulletin desk

CVE-2025-0867 is a critical-severity insufficiently protected credentials vulnerability in SICK MEAC300 from SICK, with a CVSS 3.1 base score of 9.9 out of 10. It can be exploited remotely over the network by an attacker with a low-privileged account, without any action from a user. The record lists version 4.0.54.21 as the first without the flaw, so updating SICK MEAC300 to that release or later removes the exposure. There is no confirmed exploitation so far. EPSS estimates a 0.63% chance of exploitation within 30 days, higher than 51% of scored CVEs.

Patch this week

Critical severity: a successful attack would have severe impact.

What to do

  1. Update SICK MEAC300 to 4.0.54.21 or a later version.
  2. Read the advisory on sick.com for workarounds and exact fixed builds.

Affected products and versions

VendorProductAffected versionsFixed in
SICKSICK MEAC300before 4.0.54.214.0.54.21

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
LowA basic user account is enough.
User interaction
NoneNo action by a victim is required.
Scope
ChangedThe attack can reach beyond the vulnerable component into other systems.
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:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H. Scored by CNA (sick.de).

Official description

The standard user uses the run as function to start the MEAC applications with administrative privileges. To ensure that the system can startup on its own, the credentials of the administrator were stored. Consequently, the EPC2 user can execute any command with administrative privileges. This allows a privilege escalation to the administrative level.

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

The underlying weakness: Insufficiently Protected Credentials

The product transmits or stores authentication credentials, but it uses an insecure method that is susceptible to unauthorized interception and/or retrieval.

How developers prevent this class of flaw

  • Use an appropriate security mechanism to protect the credentials.
  • Make appropriate use of cryptography to protect the credentials.
  • Use industry standards to protect the credentials (e.g. LDAP, keystore, etc.).

More Insufficiently Protected Credentials vulnerabilities (CWE-522)

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

Advisories

Recent Insufficiently Protected Credentials vulnerabilities

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