CVE-2026-3137: Codeastro Food Ordering Buffer Overflow

CVE-2026-3137 Overview

A stack-based buffer overflow vulnerability has been identified in CodeAstro Food Ordering System version 1.0. The vulnerability exists in an unknown function within the food_ordering.exe binary. Successful exploitation of this flaw allows an attacker to trigger a stack-based buffer overflow condition, potentially leading to arbitrary code execution, application crashes, or memory corruption on the affected system.

Critical Impact

Local attackers with access to the affected system can exploit this vulnerability to corrupt memory, crash the application, or potentially execute arbitrary code within the context of the vulnerable application.

Affected Products

• CodeAstro Food Ordering System 1.0
• food_ordering.exe binary component

Discovery Timeline

• 2026-02-25 - CVE-2026-3137 published to NVD
• 2026-02-25 - Last updated in NVD database

Technical Details for CVE-2026-3137

Vulnerability Analysis

This vulnerability is classified under CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer) and CWE-787 (Out-of-bounds Write). The stack-based buffer overflow occurs within the food_ordering.exe executable, where user-controlled input is processed without adequate boundary validation. When malformed or excessively long input is supplied, the application writes data beyond the allocated stack buffer, overwriting adjacent memory regions including potentially critical control structures such as return addresses or saved frame pointers.

The local attack vector requirement means an attacker must have access to the system running the vulnerable application. This could be achieved through physical access, compromised user credentials, or a secondary attack vector that provides local execution capabilities. Once local access is obtained, the attacker can manipulate input to trigger the overflow condition.

Root Cause

The root cause of this vulnerability stems from improper bounds checking when handling user input within the food_ordering.exe binary. The application fails to validate the length of input data before copying it into a fixed-size stack buffer, resulting in a classic stack-based buffer overflow condition. This represents a failure to implement secure coding practices for memory-safe operations.

Attack Vector

The vulnerability requires local access to exploit. An attacker with local system access can craft malicious input targeting the vulnerable function in food_ordering.exe. The exploit has been publicly disclosed, which increases the risk of exploitation in the wild. The attacker could potentially:

1. Craft specially formatted input exceeding the expected buffer size
2. Supply the malicious input to the vulnerable function
3. Overflow the stack buffer, corrupting adjacent memory
4. Potentially overwrite the return address to redirect execution flow

The vulnerability mechanism involves improper memory operations where user-supplied data is written beyond allocated buffer boundaries. For technical implementation details, refer to the GitHub CVE Issue Report which documents the vulnerability specifics.

Detection Methods for CVE-2026-3137

Indicators of Compromise

• Unexpected crashes or application termination of food_ordering.exe
• Memory access violation errors in system event logs
• Unusual process behavior or unexpected child processes spawned from food_ordering.exe
• Abnormal memory usage patterns in the Food Ordering System application

Detection Strategies

• Deploy endpoint detection and response (EDR) solutions to monitor for buffer overflow exploitation patterns
• Implement application crash monitoring and analysis for food_ordering.exe
• Monitor system logs for access violation exceptions and memory corruption indicators
• Utilize host-based intrusion detection systems (HIDS) to detect exploitation attempts

Monitoring Recommendations

• Enable detailed logging for the Food Ordering System application
• Configure crash dump collection for forensic analysis when food_ordering.exe terminates unexpectedly
• Implement file integrity monitoring for the food_ordering.exe binary
• Monitor local user activity on systems running the vulnerable application

How to Mitigate CVE-2026-3137

Immediate Actions Required

• Restrict local access to systems running CodeAstro Food Ordering System 1.0
• Implement application whitelisting to control execution of the vulnerable binary
• Isolate affected systems from sensitive network segments where possible
• Monitor the Code Astro Security Resource for official security updates

Patch Information

At the time of this writing, no official patch has been announced by CodeAstro for this vulnerability. Organizations should monitor the vendor's official channels for security updates. Refer to the VulDB entry #347631 for the latest information on patches and mitigation guidance. The vulnerability details are also tracked in the GitHub CVE Issue Report.

Workarounds

• Implement strict access controls to limit local access to systems running the vulnerable application
• Deploy Data Execution Prevention (DEP) and Address Space Layout Randomization (ASLR) to make exploitation more difficult
• Consider running the application in a sandboxed or containerized environment
• Remove or disable the Food Ordering System if not critical to business operations until a patch is available

# Example: Enable DEP for Windows systems via command line
bcdedit /set nx AlwaysOn

# Verify ASLR is enabled (Windows)
# Check via Windows Security settings or registry
reg query "HKLM\SYSTEM\CurrentControlSet\Control\Session Manager\Memory Management" /v MoveImages