LOW CVSS 3.1
Published: 2026-05-22

CVE-2026-9249

devolutions devolutions_server Security Advisory (CVE-2026-9249)
↗ Official NIST NVD Record
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CyberVault Technical Summary

Analyst Synthesis

Technical analysis, exploit verification, and patch instructions for CVE-2026-9249 impacting devolutions devolutions_server. Evaluated with CVSS Base Score of 3.1 (LOW).

Original NVD Description

Source: NIST NVD
Unverified password change in Devolutions Server allows an attacker to change a user's password without providing the previous one via a crafted password change request. This issue affects : * Devolutions Server 2026.1.6.0 through 2026.1.16.0 * Devolutions Server 2025.3.20.0 and earlier

📊 CVSS v3.1 Metric Breakdown

Attack Vector
Network (AV:N)
Exploitable remotely across internet boundaries
Attack Complexity
High (AC:H)
Depends on race conditions or environment
Privileges Required
Low (PR:L)
Standard user access required
User Interaction
None (UI:N)
Zero human interaction required
Scope
Unchanged (S:U)
Confined to same security context
Confidentiality
None (C:N)
No data confidentiality impact
Integrity
Low (I:L)
Partial data modification possible
Availability
None (A:N)
No system availability impact

🎯 Affected Versions Matrix

Affected Product devolutions / devolutions_server
Affected Versions *
Weakness Enumeration CWE-620

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-2026-9249 impacting devolutions devolutions_server.

⚡ Nuclei Detection Template (YAML) cve-2026-9249.yaml
id: cve-2026-9249

info:
  name: devolutions devolutions_server - Security Advisory & Vulnerability Scan
  author: cybervault-security-intel
  severity: low
  description: |
    Automated signature & scanner for CVE-2026-9249 affecting devolutions devolutions_server.
    Evaluation: Unverified password change in Devolutions Server allows an attacker to change a user's password without providing the previous one via a crafted ...
  reference:
    - https://cybervault-cve.pages.dev/cve/CVE-2026-9249
  classification:
    cvss-metrics: CVSS:3.1/CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N
    cvss-score: 3.1
    cve-id: CVE-2026-9249
    cwe-id: CWE-620
  tags: cve,cve-2026-9249,devolutions,devolutions_server,low

http:
  - method: GET
    path:
      - "{BaseURL}/"
      - "{BaseURL}/api/"
    matchers-condition: and
    matchers:
      - type: status
        status:
          - 200
      - type: word
        words:
          - "devolutions_server"
        part: body
🐍 PoC Exploit & Verification Probe (Python 3) poc_cve-2026-9249.py
# Proof-of-Concept Exploit & Verification Probe for CVE-2026-9249
# Target: devolutions devolutions_server | CVSS: 3.1 (LOW)
# Educational & Security Audit Purpose Only

import requests
import sys

def verify_vulnerability(target_url):
    print(f"[*] Auditing {target_url} for CVE-2026-9249 (devolutions devolutions_server)...")
    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 devolutions devolutions_server 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-2026-9249.sh
# Recommended Remediation & Patching Commands for CVE-2026-9249
# 1. Update package via distribution package manager:
sudo apt-get update && sudo apt-get --only-upgrade install devolutions_server 2>/dev/null || \
sudo dnf upgrade devolutions_server 2>/dev/null || \
sudo yum update devolutions_server

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

# 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
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Distributions
  • No records filed in this category.

❓ Frequently Asked Questions (FAQ) & Remediation Guide

How do I fix CVE-2026-9249 in devolutions devolutions_server?

Review vendor-specific security notices and update devolutions devolutions_server 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-2026-9249?

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-2026-9249?

CVE-2026-9249 is classified with a CVSS 3.1 Base Score of 3.1 (LOW). Check the metric breakdown above for attack vector requirements.

Risk Snapshot
3.1
LOW SEVERITY
CVE ID CVE-2026-9249
Weakness CWE-620
Vendor devolutions
Product devolutions_server
Published 2026-05-22
Vector CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N