CVE-2025-32008: Intel AMT Out-of-Bounds Write DoS Flaw

CVE-2025-32008 Overview

CVE-2025-32008 is an out-of-bounds write vulnerability affecting the firmware for Intel(R) Active Management Technology (AMT) and Intel(R) Standard Manageability within Ring 3 user applications. This firmware vulnerability allows unauthenticated network adversaries to trigger a denial of service condition through specially crafted network requests.

Critical Impact

Network-accessible denial of service vulnerability in Intel AMT and Standard Manageability firmware that can disrupt system availability without requiring authentication or user interaction.

Affected Products

• Intel(R) Active Management Technology (AMT) Firmware
• Intel(R) Standard Manageability Firmware
• Systems with vulnerable Intel management firmware components

Discovery Timeline

• 2026-02-10 - CVE CVE-2025-32008 published to NVD
• 2026-04-15 - Last updated in NVD database

Technical Details for CVE-2025-32008

Vulnerability Analysis

This vulnerability stems from an out-of-bounds write condition (CWE-787) in the firmware for Intel AMT and Intel Standard Manageability components. The flaw exists within Ring 3 user application space of the management firmware, where improper boundary checking allows write operations beyond allocated memory buffers.

The vulnerability is exploitable over the network without authentication. An attacker can send malicious requests to the affected Intel management interfaces, triggering the out-of-bounds write condition. While the vulnerability does not compromise data confidentiality or integrity, it can cause significant disruption to system availability.

The attack complexity is low, meaning no special conditions or circumstances are required for successful exploitation. No user interaction is necessary, and the attacker does not need any prior privileges on the target system. The primary impact is a denial of service affecting the vulnerable system's availability, with potential secondary effects on connected systems experiencing low availability impact.

Root Cause

The root cause is an out-of-bounds write vulnerability (CWE-787) in the Intel AMT and Standard Manageability firmware. This class of vulnerability occurs when software writes data past the end or before the beginning of an intended buffer. In this case, insufficient bounds checking in the firmware's Ring 3 user application layer allows memory corruption that results in service disruption.

Attack Vector

The vulnerability is exploitable remotely over the network. An unauthenticated attacker with network access to the Intel AMT or Standard Manageability interface can exploit this vulnerability without any special prerequisites. The attack requires low complexity and no user interaction, making it particularly accessible to remote attackers who can reach the management interfaces.

The exploitation mechanism involves sending crafted network traffic to the vulnerable Intel management components, causing the firmware to write data outside of designated memory boundaries, ultimately leading to a denial of service condition.

Detection Methods for CVE-2025-32008

Indicators of Compromise

• Unexpected service crashes or restarts of Intel AMT or Standard Manageability components
• Unusual network traffic patterns targeting Intel management ports (typically ports 16992, 16993, 16994, 16995)
• System availability issues or unresponsive management interfaces
• Log entries indicating memory corruption or service faults in Intel management components

Detection Strategies

• Monitor network traffic for anomalous requests to Intel AMT management ports
• Implement intrusion detection rules to identify potential exploitation attempts targeting Intel management interfaces
• Configure system monitoring to alert on unexpected Intel management service failures or restarts
• Deploy network segmentation to isolate management interfaces and improve visibility into access attempts

Monitoring Recommendations

• Enable logging for Intel AMT and Standard Manageability components where available
• Monitor system event logs for management firmware crashes or memory-related errors
• Implement network monitoring for unusual traffic patterns to management interface ports
• Consider deploying honeypot or decoy management interfaces to detect reconnaissance activity

How to Mitigate CVE-2025-32008

Immediate Actions Required

• Review the Intel Security Advisory SA-01315 for specific patch and mitigation guidance
• Restrict network access to Intel AMT and Standard Manageability interfaces to trusted management networks only
• Implement firewall rules to limit access to Intel management ports (16992-16995)
• Consider disabling Intel AMT and Standard Manageability features if not actively used

Patch Information

Intel has released security guidance for this vulnerability. Administrators should consult the Intel Security Advisory SA-01315 for detailed patch information, affected version numbers, and firmware update instructions specific to their hardware platforms.

Contact your system or motherboard vendor for firmware updates that address this vulnerability. Enterprise environments should prioritize patching systems with network-exposed Intel management interfaces.

Workarounds

• Disable Intel AMT and Standard Manageability features if they are not required for system management
• Implement strict network segmentation to isolate management interfaces from untrusted networks
• Configure firewall rules to block external access to Intel management ports
• Use VPN or other secure access methods for remote management instead of direct network exposure

# Example: Block Intel AMT ports using iptables
# Adjust rules based on your network configuration
iptables -A INPUT -p tcp --dport 16992:16995 -j DROP
iptables -A INPUT -p tcp --dport 623 -j DROP
# Allow only from trusted management subnet if needed
# iptables -A INPUT -s 10.0.100.0/24 -p tcp --dport 16992:16995 -j ACCEPT