CVE-2026-22536
📋 TL;DR
This CVE describes a privilege escalation vulnerability in sudoers configuration that allows unrestricted privilege escalation. Any user with access to the affected system can gain root privileges without authentication. This affects systems with misconfigured sudoers files.
💻 Affected Systems
- Systems with misconfigured sudoers files
⚠️ Manual Verification Required
This CVE does not have specific version information in our database, so automatic vulnerability detection cannot determine if your system is affected.
Why? The CVE database entry doesn't specify which versions are vulnerable (no version ranges provided by the vendor/NVD).
🔒 Custom verification scripts are available for registered users. Sign up free to download automated test scripts.
- Review the CVE details at NVD
- Check vendor security advisories for your specific version
- Test if the vulnerability is exploitable in your environment
- Consider updating to the latest version as a precaution
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise with root access, allowing attackers to install persistent malware, exfiltrate sensitive data, or disrupt critical services.
Likely Case
Local privilege escalation leading to unauthorized administrative access, data theft, and lateral movement within the network.
If Mitigated
Limited impact if proper sudoers configuration controls and least privilege principles are enforced.
🎯 Exploit Status
Exploitation requires local user access but is trivial once access is obtained. The vulnerability is in configuration, not code.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: N/A
Vendor Advisory: https://cds.thalesgroup.com/en
Restart Required: No
Instructions:
1. Review sudoers configuration files
2. Remove unrestricted sudo permissions for user XXX
3. Apply principle of least privilege
4. Validate configuration with 'visudo -c'
🔧 Temporary Workarounds
Restrict sudo permissions
linuxModify sudoers file to remove unrestricted sudo access for user XXX
sudo visudo
Remove or restrict line for user XXX
Disable user account
linuxTemporarily disable the vulnerable user account
sudo usermod -L XXX
🧯 If You Can't Patch
- Implement network segmentation to limit access to affected systems
- Enable detailed sudo logging and monitor for privilege escalation attempts
🔍 How to Verify
Check if Vulnerable:
Check sudoers file for unrestricted permissions: sudo cat /etc/sudoers | grep XXXCheck Version:
N/A (configuration issue)Verify Fix Applied:
Verify restricted permissions: sudo -l -U XXX📡 Detection & Monitoring
Log Indicators:
- Successful sudo commands from user XXX
- Privilege escalation attempts in auth logs
Network Indicators:
- N/A (local exploitation only)
SIEM Query:
source="auth.log" AND "sudo" AND user="XXX" AND success