CVE-2026-25608
Received Received - Intake
STER Network Traffic Exposure via Unencrypted TCP Allows MITM Data Theft

Publication date: 2026-05-22

Last updated on: 2026-05-22

Assigner: CERT.PL

Description
STER uses unencrypted TCP traffic to transmit data over the network. It allows an attacker to conduct a Man-In-The-Middle attack and obtain sensitive data such as passwords, personal data, or authentication tokens. This issue was fixed in version 9.5.
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Meta Information
Published
2026-05-22
Last Modified
2026-05-22
Generated
2026-06-11
AI Q&A
2026-05-22
EPSS Evaluated
2026-06-10
NVD
EUVD
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
ster ster 9.5
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-319 The product transmits sensitive or security-critical data in cleartext in a communication channel that can be sniffed by unauthorized actors.
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Executive Summary

This vulnerability exists because STER transmits data over the network using unencrypted TCP traffic.

An attacker can exploit this by performing a Man-In-The-Middle (MITM) attack, intercepting the network traffic.

Through this interception, the attacker can obtain sensitive information such as passwords, personal data, or authentication tokens.

Impact Analysis

The vulnerability can lead to unauthorized access to sensitive data transmitted over the network.

  • Exposure of passwords could allow attackers to compromise user accounts.
  • Personal data interception can lead to privacy breaches.
  • Authentication tokens being stolen can enable attackers to impersonate legitimate users.
Mitigation Strategies

To mitigate this vulnerability, you should upgrade STER to version 9.5 or later, where the issue has been fixed.

Compliance Impact

The vulnerability allows an attacker to conduct a Man-In-The-Middle attack and obtain sensitive data such as passwords, personal data, or authentication tokens by intercepting unencrypted TCP traffic.

This exposure of sensitive personal data could lead to non-compliance with data protection regulations such as GDPR and HIPAA, which require the protection of personal and sensitive information during transmission.

Using unencrypted communication channels for sensitive data transmission is generally considered a violation of these standards, potentially resulting in legal and regulatory consequences.

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