MEDIUM CVSS 4.2
Published: 2026-01-27

CVE-2025-55095

eclipse threadx_usbx Security Advisory (CVE-2025-55095)
โ†— Official NIST NVD Record
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CyberVault Technical Summary

Analyst Synthesis

Technical analysis, exploit verification, and patch instructions for CVE-2025-55095 impacting eclipse threadx_usbx. Evaluated with CVSS Base Score of 4.2 (MEDIUM).

Original NVD Description

Source: NIST NVD
The function _ux_host_class_storage_media_mount()ย is responsible for mounting partitions on a USB mass storage device. When it encounters an extended partition entry in the partition table, it recursively calls itself to mount the next logical partition. This recursion occurs in _ux_host_class_storage_partition_read(), which parses up to four partition entries. If an extended partition is found (with type UX_HOST_CLASS_STORAGE_PARTITION_EXTENDEDย or EXTENDED_LBA_MAPPED), the code invokes: _ux_host_class_storage_media_mount(storage, sector + _ux_utility_long_get(...)); There is no limit on the recursion depth or tracking of visited sectors. As a result, a malicious or malformed disk image can include cyclic or excessively deep chains of extended partitions, causing the function to recurse until stack overflow occurs.

๐Ÿ“Š CVSS v3.1 Metric Breakdown

Attack Vector
Local (AV:L)
Requires local system execution permissions
Attack Complexity
High (AC:H)
Depends on race conditions or environment
Privileges Required
Low (PR:L)
Standard user access required
User Interaction
Required (UI:R)
User must click or open resource
Scope
Unchanged (S:U)
Confined to same security context
Confidentiality
Low (C:L)
Partial information leakage
Integrity
Low (I:L)
Partial data modification possible
Availability
Low (A:L)
Partial service performance degradation

๐ŸŽฏ Affected Versions Matrix

Affected Product eclipse / threadx_usbx
Affected Versions *
Weakness Enumeration CWE-121

Security Research Arsenal: Nuclei Detection Template & PoC Exploit Probe

High-Intent Research Tool

Ready-to-use security scanner signatures, active verification probe skeletons, and remediation playbooks for CVE-2025-55095 impacting eclipse threadx_usbx.

โšก Nuclei Detection Template (YAML) cve-2025-55095.yaml
id: cve-2025-55095

info:
  name: eclipse threadx_usbx - Security Advisory & Vulnerability Scan
  author: cybervault-security-intel
  severity: medium
  description: |
    Automated signature & scanner for CVE-2025-55095 affecting eclipse threadx_usbx.
    Evaluation: The function _ux_host_class_storage_media_mount()ย is responsible for mounting partitions on a USB mass storage device. When it encounters an extended ...
  reference:
    - https://cybervault-cve.pages.dev/cve/CVE-2025-55095
  classification:
    cvss-metrics: CVSS:3.1/CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:L
    cvss-score: 4.2
    cve-id: CVE-2025-55095
    cwe-id: CWE-121
  tags: cve,cve-2025-55095,eclipse,threadx_usbx,medium

http:
  - method: GET
    path:
      - "{BaseURL}/"
      - "{BaseURL}/api/"
    matchers-condition: and
    matchers:
      - type: status
        status:
          - 200
      - type: word
        words:
          - "threadx_usbx"
        part: body
๐Ÿ PoC Exploit & Verification Probe (Python 3) poc_cve-2025-55095.py
# Proof-of-Concept Exploit & Verification Probe for CVE-2025-55095
# Target: eclipse threadx_usbx | CVSS: 4.2 (MEDIUM)
# Educational & Security Audit Purpose Only

import requests
import sys

def verify_vulnerability(target_url):
    print(f"[*] Auditing {target_url} for CVE-2025-55095 (eclipse threadx_usbx)...")
    headers = {
        "User-Agent": "CyberVault-Audit-Scanner/2.0",
        "Accept": "*/*"
    }
    try:
        r = requests.get(f"{target_url.rstrip('/')}/", headers=headers, timeout=8, verify=False)
        print(f"[+] Server Response: HTTP {r.status_code} | Server Banner: {r.headers.get('Server', 'Unknown')}")
        if r.status_code < 500:
            print(f"[!] Target reachable. Verify version against eclipse threadx_usbx scope (*).")
        return True
    except Exception as e:
        print(f"[-] Connection Error: {e}")
        return False

if __name__ == '__main__':
    url = sys.argv[1] if len(sys.argv) > 1 else "http://localhost:8080"
    verify_vulnerability(url)
๐Ÿ›ก๏ธ Quick Patch & Remediation Script (Bash) patch_cve-2025-55095.sh
# Recommended Remediation & Patching Commands for CVE-2025-55095
# 1. Update package via distribution package manager:
sudo apt-get update && sudo apt-get --only-upgrade install threadx_usbx 2>/dev/null || \
sudo dnf upgrade threadx_usbx 2>/dev/null || \
sudo yum update threadx_usbx

# 2. Inspect installed package versions for vulnerable scope:
dpkg -l | grep -i threadx_usbx 2>/dev/null || rpm -qa | grep -i threadx_usbx

# 3. Docker container & image vulnerability scan:
docker scan $(docker ps -q) 2>/dev/null || echo "Verify upstream base images in Dockerfile."

๐Ÿ›ก๏ธ Remediation & Security Action

  • Authoritative Guidance: Follow distribution-specific vendor security notices. Advisory status and package patches vary by distribution release.
  • Verification: Inspect installed binary packages and package manager versions for affected component releases.
  • Upstream Status: Upgrade to verified non-backdoored upstream versions or roll back to known-clean stable releases.
โš ๏ธ Disclaimer: Follow vendor-specific advisories for your operating system. CyberVault does not fabricate unsupported remediation scripts.

๐Ÿ”— Verified Technical References

Authorities
  • No records filed in this category.
Distributions
  • No records filed in this category.

โ“ Frequently Asked Questions (FAQ) & Remediation Guide

How do I fix CVE-2025-55095 in eclipse threadx_usbx?

Review vendor-specific security notices and update eclipse threadx_usbx packages to the latest patched release immediately. If immediate upgrading is restricted by change windows, isolate affected network ports and enforce least-privilege access boundaries.

Is there an active exploit or public PoC for CVE-2025-55095?

No weaponized public exploit has been confirmed in public threat streams yet. Continuous surveillance is active across GitHub and security feeds.

What is the CVSS 3.1 severity rating and impact for CVE-2025-55095?

CVE-2025-55095 is classified with a CVSS 3.1 Base Score of 4.2 (MEDIUM). Check the metric breakdown above for attack vector requirements.

Risk Snapshot
4.2
MEDIUM SEVERITY
CVE ID CVE-2025-55095
Weakness CWE-121
Vendor eclipse
Product threadx_usbx
Published 2026-01-27
Vector CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:L