HIGH CVSS 8.2
Published: 2025-12-25

CVE-2025-59683

pexip pexip_infinity Security Advisory (CVE-2025-59683)
↗ Official NIST NVD Record
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CyberVault Technical Summary

Analyst Synthesis

Technical analysis, exploit verification, and patch instructions for CVE-2025-59683 impacting pexip pexip_infinity. Evaluated with CVSS Base Score of 8.2 (HIGH).

Original NVD Description

Source: NIST NVD
Pexip Infinity 15.0 through 38.0 before 38.1 has Improper Access Control in the Secure Scheduler for Exchange service, when used with Office 365 Legacy Exchange Tokens. This allows a remote attacker to read potentially sensitive data and excessively consume resources, leading to a denial of service.

📊 CVSS v3.1 Metric Breakdown

Attack Vector
Network (AV:N)
Exploitable remotely across internet boundaries
Attack Complexity
Low (AC:L)
No specialized conditions required
Privileges Required
None (PR:N)
Unauthenticated execution
User Interaction
None (UI:N)
Zero human interaction required
Scope
Unchanged (S:U)
Confined to same security context
Confidentiality
Low (C:L)
Partial information leakage
Integrity
None (I:N)
No system modification impact
Availability
High (A:H)
Total denial of service or shutdown

🎯 Affected Versions Matrix

Affected Product pexip / pexip_infinity
Affected Versions *
Weakness Enumeration CWE-863

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-2025-59683 impacting pexip pexip_infinity.

⚡ Nuclei Detection Template (YAML) cve-2025-59683.yaml
id: cve-2025-59683

info:
  name: pexip pexip_infinity - Security Advisory & Vulnerability Scan
  author: cybervault-security-intel
  severity: high
  description: |
    Automated signature & scanner for CVE-2025-59683 affecting pexip pexip_infinity.
    Evaluation: Pexip Infinity 15.0 through 38.0 before 38.1 has Improper Access Control in the Secure Scheduler for Exchange service, when used with Office 365 Legac...
  reference:
    - https://cybervault-cve.pages.dev/cve/CVE-2025-59683
  classification:
    cvss-metrics: CVSS:3.1/CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
    cvss-score: 8.2
    cve-id: CVE-2025-59683
    cwe-id: CWE-863
  tags: cve,cve-2025-59683,pexip,pexip_infinity,high

http:
  - method: GET
    path:
      - "{BaseURL}/"
      - "{BaseURL}/api/"
    matchers-condition: and
    matchers:
      - type: status
        status:
          - 200
      - type: word
        words:
          - "pexip_infinity"
        part: body
🐍 PoC Exploit & Verification Probe (Python 3) poc_cve-2025-59683.py
# Proof-of-Concept Exploit & Verification Probe for CVE-2025-59683
# Target: pexip pexip_infinity | CVSS: 8.2 (HIGH)
# Educational & Security Audit Purpose Only

import requests
import sys

def verify_vulnerability(target_url):
    print(f"[*] Auditing {target_url} for CVE-2025-59683 (pexip pexip_infinity)...")
    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 pexip pexip_infinity 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-2025-59683.sh
# Recommended Remediation & Patching Commands for CVE-2025-59683
# 1. Update package via distribution package manager:
sudo apt-get update && sudo apt-get --only-upgrade install pexip_infinity 2>/dev/null || \
sudo dnf upgrade pexip_infinity 2>/dev/null || \
sudo yum update pexip_infinity

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

# 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
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❓ Frequently Asked Questions (FAQ) & Remediation Guide

How do I fix CVE-2025-59683 in pexip pexip_infinity?

Review vendor-specific security notices and update pexip pexip_infinity 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-2025-59683?

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-2025-59683?

CVE-2025-59683 is classified with a CVSS 3.1 Base Score of 8.2 (HIGH). Check the metric breakdown above for attack vector requirements.

Risk Snapshot
8.2
HIGH SEVERITY
CVE ID CVE-2025-59683
Weakness CWE-863
Vendor pexip
Product pexip_infinity
Published 2025-12-25
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H