CVE-2025-6139 Vulnerability Analysis & Exploit Details

CVE-2025-6139
Vulnerability Scoring

3.9
/10
Moderate Risk

Exploiting CVE-2025-6139 requires specific conditions, leading to a moderate security impact.

Attack Complexity Details

  • Attack Complexity: High
    Exploits require significant effort and special conditions.
  • Attack Vector: Adjacent_network
    Attack Vector Under Analysis
  • Privileges Required: High
    High-level privileges are required for exploitation.
  • Scope: Unchanged
    Exploit remains within the originally vulnerable component.
  • User Interaction: None
    No user interaction is necessary for exploitation.

CVE-2025-6139 Details

Status: Analyzed

Last updated: 🕓 26 Jun 2025, 16:27 UTC
Originally published on: 🕘 16 Jun 2025, 21:15 UTC

Time between publication and last update: 9 days

CVSS Release: version 3

CVSS3 Source

cna@vuldb.com

CVSS3 Type

Primary

CVSS3 Vector

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

CVE-2025-6139 Vulnerability Summary

CVE-2025-6139: A vulnerability, which was classified as problematic, has been found in TOTOLINK T10 4.1.8cu.5207. Affected by this issue is some unknown functionality of the file /etc/shadow.sample. The manipulation leads to use of hard-coded password. The attack can only be initiated within the local network. The complexity of an attack is rather high. The exploitation is known to be difficult. The exploit has been disclosed to the public and may be used.

Assessing the Risk of CVE-2025-6139

Access Complexity Graph

The exploitability of CVE-2025-6139 depends on two key factors: attack complexity (the level of effort required to execute an exploit) and privileges required (the access level an attacker needs).

Exploitability Analysis for CVE-2025-6139

The exploitability of CVE-2025-6139 is influenced by multiple factors. Security teams should analyze system configurations and apply appropriate countermeasures to mitigate threats.

Understanding AC and PR

A lower complexity and fewer privilege requirements make exploitation easier. Security teams should evaluate these aspects to determine the urgency of mitigation strategies, such as patch management and access control policies.

Attack Complexity (AC) measures the difficulty in executing an exploit. A high AC means that specific conditions must be met, making an attack more challenging, while a low AC means the vulnerability can be exploited with minimal effort.

Privileges Required (PR) determine the level of system access necessary for an attack. Vulnerabilities requiring no privileges are more accessible to attackers, whereas high privilege requirements limit exploitation to authorized users with elevated access.

CVSS Score Breakdown Chart

Above is the CVSS Sub-score Breakdown for CVE-2025-6139, illustrating how Base, Impact, and Exploitability factors combine to form the overall severity rating. A higher sub-score typically indicates a more severe or easier-to-exploit vulnerability.

CIA Impact Analysis

Below is the Impact Analysis for CVE-2025-6139, showing how Confidentiality, Integrity, and Availability might be affected if the vulnerability is exploited. Higher values usually signal greater potential damage.

  • Confidentiality: Low
    CVE-2025-6139 could lead to minor leaks of non-critical information without major privacy breaches.
  • Integrity: Low
    Exploiting CVE-2025-6139 may cause minor changes to data without severely impacting its accuracy.
  • Availability: Low
    CVE-2025-6139 may slightly degrade system performance without fully affecting service availability.

CVE-2025-6139 References

External References

CWE Common Weakness Enumeration

CWE-259

Vulnerable Configurations

  • cpe:2.3:o:totolink:t10_firmware:4.1.8cu.5207_b20210320:*:*:*:*:*:*:*
    cpe:2.3:o:totolink:t10_firmware:4.1.8cu.5207_b20210320:*:*:*:*:*:*:*
  • cpe:2.3:h:totolink:t10:2.0:*:*:*:*:*:*:*
    cpe:2.3:h:totolink:t10:2.0:*:*:*:*:*:*:*

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