CVE-2025-13506: Nebim V3 ERP Privilege Escalation Flaw

CVE-2025-13506 Overview

CVE-2025-13506 is an Execution with Unnecessary Privileges vulnerability [CWE-250] affecting Nebim V3 ERP, developed by Nebim Neyir Computer Industry and Services Inc. The flaw allows an authenticated attacker to expand control from the database layer to the underlying operating system. Affected versions range from 2.0.59 to versions before 3.0.1. The vulnerability is network-exploitable with low attack complexity and requires only low-privileged access. Successful exploitation impacts confidentiality, integrity, and availability of the host operating system.

Critical Impact
An authenticated database user can escalate privileges and execute commands on the underlying operating system, leading to full host compromise of Nebim V3 ERP servers.

Affected Products

Nebim V3 ERP version 2.0.59 and later
Nebim V3 ERP versions prior to 3.0.1
Nebim Neyir Computer Industry and Services Inc. ERP deployments

Discovery Timeline

2025-12-12 - CVE-2025-13506 published to NVD
2026-04-15 - Last updated in NVD database

Technical Details for CVE-2025-13506

Vulnerability Analysis

The vulnerability is classified under [CWE-250]: Execution with Unnecessary Privileges. Nebim V3 ERP runs database operations with privileges greater than necessary for routine application functions. An authenticated user with database access can leverage these excessive privileges to issue operating system commands from within the database context. This represents a classic database-to-OS pivot pattern in enterprise resource planning software. The attacker does not need physical access or user interaction to exploit the flaw. The network attack vector combined with low privilege requirements broadens the threat surface across any environment exposing the ERP database.

Root Cause

The root cause is improper privilege separation between the database service account and the operating system. The Nebim V3 ERP database process executes under a context that retains permissions to invoke OS-level functionality. Database stored procedures or extended functionality can therefore reach the host shell. This violates the principle of least privilege required for secure database deployments.

Attack Vector

An attacker with valid low-privilege credentials connects to the Nebim V3 ERP database over the network. The attacker invokes database functionality that calls into operating system commands using the elevated service privileges. The result is command execution on the underlying server, achieving high impact across confidentiality, integrity, and availability. Public proof-of-concept code is not currently available, and the vulnerability is not listed in the CISA Known Exploited Vulnerabilities catalog. Detailed exploitation specifics are described in the USOM Security Notification TR-25-0450.

Detection Methods for CVE-2025-13506

Indicators of Compromise

Unexpected child processes spawned by the Nebim V3 ERP database service account on the host
Database audit logs showing invocation of extended stored procedures or OS command interfaces by non-administrative accounts
Outbound network connections originating from the database process to unusual destinations
Creation of new local accounts or scheduled tasks on Nebim V3 ERP servers without change-management records

Detection Strategies

Monitor process-tree relationships where the ERP database service is the parent of shell interpreters such as cmd.exe, powershell.exe, or /bin/sh
Enable database-level auditing for privilege escalation functions and OS command execution interfaces
Correlate failed and successful logins to the Nebim V3 ERP database with subsequent host-level process activity

Monitoring Recommendations

Forward Nebim V3 ERP database audit logs and Windows or Linux process telemetry into a centralized SIEM
Establish baselines for normal database service account behavior and alert on deviations
Track file integrity on Nebim V3 ERP binaries, configuration files, and the database installation directory

How to Mitigate CVE-2025-13506

Immediate Actions Required

Upgrade Nebim V3 ERP to version 3.0.1 or later as the primary remediation
Inventory all Nebim V3 ERP instances and identify any running versions between 2.0.59 and 3.0.1
Restrict network access to the ERP database to authorized application servers and administrators only
Rotate credentials for all Nebim V3 ERP database accounts following the upgrade

Patch Information

The vendor addresses CVE-2025-13506 in Nebim V3 ERP version 3.0.1. Administrators should consult the USOM Security Notification TR-25-0450 for advisory details and coordinate upgrade scheduling with Nebim Neyir Computer Industry and Services Inc. Apply the update across all production, staging, and disaster-recovery environments.

Workarounds

Reduce the privileges of the database service account to remove operating system command execution capability where feasible
Disable or restrict access to database features that invoke OS-level commands until the patch can be applied
Place the ERP database behind a network segmentation boundary that limits access to known application hosts
Enforce multi-factor authentication and strong password policies for all database accounts to reduce credential abuse

bash

# Configuration example: restrict database network exposure with host firewall rules
# Allow only the application server to reach the Nebim V3 ERP database port
iptables -A INPUT -p tcp --dport 1433 -s <app_server_ip> -j ACCEPT
iptables -A INPUT -p tcp --dport 1433 -j DROP