MEDIUM CVSS 4.6
Published: 2025-12-16

CVE-2025-62862

amperecomputing ampereone_a192-32m_firmware Security Advisory (CVE-2025-62862)
↗ Official NIST NVD Record
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CyberVault Technical Summary

Analyst Synthesis

Technical analysis, exploit verification, and patch instructions for CVE-2025-62862 impacting amperecomputing ampereone_a192-32m_firmware. Evaluated with CVSS Base Score of 4.6 (MEDIUM).

Original NVD Description

Source: NIST NVD
Ampere AmpereOne AC03 devices before 3.5.9.3, AmpereOne AC04 devices before 4.4.5.2, and AmpereOne M devices before 5.4.5.1 allow an incorrectly formed SMC call to UEFI-MM Boot Error Record Table driver that could result in (1) an out-of-bounds read which leaks Secure-EL0 information to a process running in Non-Secure state or (2) an out-of-bounds write which corrupts Secure or Non-Secure memory, limited to memory mapped to UEFI-MM Secure Partition by the Secure Partition Manager.

📊 CVSS v3.1 Metric Breakdown

Attack Vector
Local (AV:L)
Requires local system execution permissions
Attack Complexity
Low (AC:L)
No specialized conditions required
Privileges Required
High (PR:H)
Administrative credentials required
User Interaction
None (UI:N)
Zero human interaction required
Scope
Changed (S:C)
Impacts components beyond caller authority
Confidentiality
None (C:N)
No data confidentiality impact
Integrity
Low (I:L)
Partial data modification possible
Availability
Low (A:L)
Partial service performance degradation

🎯 Affected Versions Matrix

Affected Product amperecomputing / ampereone_a192-32m_firmware
Affected Versions *
Weakness Enumeration CWE-125

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-2025-62862 impacting amperecomputing ampereone_a192-32m_firmware.

⚡ Nuclei Detection Template (YAML) cve-2025-62862.yaml
id: cve-2025-62862

info:
  name: amperecomputing ampereone_a192-32m_firmware - Security Advisory & Vulnerability Scan
  author: cybervault-security-intel
  severity: medium
  description: |
    Automated signature & scanner for CVE-2025-62862 affecting amperecomputing ampereone_a192-32m_firmware.
    Evaluation: Ampere AmpereOne AC03 devices before 3.5.9.3, AmpereOne AC04 devices before 4.4.5.2, and AmpereOne M devices before 5.4.5.1 allow an incorrectly forme...
  reference:
    - https://cybervault-cve.pages.dev/cve/CVE-2025-62862
  classification:
    cvss-metrics: CVSS:3.1/CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:L/A:L
    cvss-score: 4.6
    cve-id: CVE-2025-62862
    cwe-id: CWE-125
  tags: cve,cve-2025-62862,amperecomputing,ampereone_a192-32m_firmwa,medium

http:
  - method: GET
    path:
      - "{BaseURL}/"
      - "{BaseURL}/api/"
    matchers-condition: and
    matchers:
      - type: status
        status:
          - 200
      - type: word
        words:
          - "ampereone_a192-32m_firmware"
        part: body
🐍 PoC Exploit & Verification Probe (Python 3) poc_cve-2025-62862.py
# Proof-of-Concept Exploit & Verification Probe for CVE-2025-62862
# Target: amperecomputing ampereone_a192-32m_firmware | CVSS: 4.6 (MEDIUM)
# Educational & Security Audit Purpose Only

import requests
import sys

def verify_vulnerability(target_url):
    print(f"[*] Auditing {target_url} for CVE-2025-62862 (amperecomputing ampereone_a192-32m_firmware)...")
    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 amperecomputing ampereone_a192-32m_firmware 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)
🛡️ Quick Patch & Remediation Script (Bash) patch_cve-2025-62862.sh
# Recommended Remediation & Patching Commands for CVE-2025-62862
# 1. Update package via distribution package manager:
sudo apt-get update && sudo apt-get --only-upgrade install ampereone_a192-32m_firmwa 2>/dev/null || \
sudo dnf upgrade ampereone_a192-32m_firmwa 2>/dev/null || \
sudo yum update ampereone_a192-32m_firmwa

# 2. Inspect installed package versions for vulnerable scope:
dpkg -l | grep -i ampereone_a192-32m_firmwa 2>/dev/null || rpm -qa | grep -i ampereone_a192-32m_firmwa

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

🛡️ 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.
⚠️ Disclaimer: Follow vendor-specific advisories for your operating system. CyberVault does not fabricate unsupported remediation scripts.

🔗 Verified Technical References

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

❓ Frequently Asked Questions (FAQ) & Remediation Guide

How do I fix CVE-2025-62862 in amperecomputing ampereone_a192-32m_firmware?

Review vendor-specific security notices and update amperecomputing ampereone_a192-32m_firmware 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-2025-62862?

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-2025-62862?

CVE-2025-62862 is classified with a CVSS 3.1 Base Score of 4.6 (MEDIUM). Check the metric breakdown above for attack vector requirements.

Risk Snapshot
4.6
MEDIUM SEVERITY
CVE ID CVE-2025-62862
Weakness CWE-125
Vendor amperecomputing
Product ampereone_a192-32m_firmware
Published 2025-12-16
Vector CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:L/A:L