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

CVE-2025-32008 Overview

CVE-2025-32008 is a high-severity out-of-bounds write vulnerability affecting the firmware for Intel(R) Active Management Technology (AMT) and Intel(R) Standard Manageability. The vulnerability exists within Ring 3 user applications and can be exploited by an unauthenticated network adversary to cause a denial of service condition.

This firmware vulnerability allows attackers to write data beyond allocated memory boundaries, potentially corrupting critical system data structures and causing system instability or crashes. The attack can be executed remotely over the network with low complexity, requiring no authentication, special conditions, or user interaction.

Critical Impact

Unauthenticated remote attackers can exploit this vulnerability to cause denial of service on systems with vulnerable Intel AMT and Standard Manageability firmware, disrupting enterprise management capabilities.

Affected Products

• Intel(R) Active Management Technology (AMT) firmware
• Intel(R) Standard Manageability firmware
• Systems utilizing Intel vPro platform management features

Discovery Timeline

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

Technical Details for CVE-2025-32008

Vulnerability Analysis

This vulnerability is classified as CWE-787 (Out-of-bounds Write), a memory corruption flaw where the firmware fails to properly validate buffer boundaries before writing data. Intel AMT and Standard Manageability are firmware-based remote management technologies that operate independently of the operating system, making them particularly attractive targets for attackers seeking persistent access or disruption capabilities.

The vulnerability resides within Ring 3 (user-level) applications in the management firmware. When exploited, the out-of-bounds write can corrupt adjacent memory regions, leading to firmware crashes and denial of service. While the primary impact affects availability with no direct confidentiality or integrity compromise on the vulnerable system, there may be subsequent low-impact availability effects on connected systems.

The network-accessible nature of Intel AMT means this vulnerability can be exploited remotely by attackers who can reach the management interface, typically operating on dedicated network ports separate from the host operating system.

Root Cause

The root cause is insufficient bounds checking in the firmware's memory write operations within Ring 3 user applications. When processing certain inputs received via the network interface, the firmware fails to validate that write operations remain within allocated buffer boundaries, allowing data to be written to unintended memory locations.

Attack Vector

The attack vector is network-based, allowing remote exploitation without authentication. An attacker can send specially crafted network packets to the Intel AMT or Standard Manageability interface to trigger the out-of-bounds write condition.

The exploitation process involves:

1. Identifying systems with exposed Intel AMT or Standard Manageability interfaces
2. Crafting malicious network requests that trigger the vulnerable code path
3. Sending the requests to cause memory corruption in the firmware
4. The firmware crashes or becomes unresponsive, denying management functionality

Technical details regarding specific exploitation methods should be referenced in the Intel Security Advisory SA-01315.

Detection Methods for CVE-2025-32008

Indicators of Compromise

• Unexpected Intel AMT or Standard Manageability service crashes or restarts
• Anomalous network traffic targeting Intel AMT ports (typically TCP 16992, 16993, 16994, 16995)
• Management interface becoming unresponsive without apparent cause
• Firmware watchdog timer events indicating unexpected resets

Detection Strategies

• Monitor network traffic for unusual patterns targeting Intel AMT management ports
• Implement network segmentation to isolate management interfaces and log all access attempts
• Deploy intrusion detection rules to identify malformed packets targeting Intel management services
• Enable firmware logging and centralize log collection for anomaly detection

Monitoring Recommendations

• Configure alerting for Intel AMT service availability and unexpected restarts
• Monitor for network scanning activity targeting common Intel AMT ports
• Track firmware version information across managed endpoints to identify vulnerable systems
• Review management interface access logs for unauthorized connection attempts

How to Mitigate CVE-2025-32008

Immediate Actions Required

• Review Intel Security Advisory SA-01315 for affected firmware versions and available updates
• Inventory all systems with Intel AMT or Standard Manageability enabled
• Restrict network access to Intel AMT interfaces using firewall rules
• Disable Intel AMT on systems where remote management is not required

Patch Information

Intel has released security guidance in Security Advisory SA-01315. Organizations should consult this advisory for specific firmware version information and update procedures. Firmware updates are typically distributed through system manufacturers and should be obtained from the appropriate OEM support channels.

Workarounds

• Implement network segmentation to isolate Intel AMT interfaces from untrusted networks
• Configure firewall rules to restrict access to AMT ports (16992-16995) to authorized management systems only
• Disable Intel AMT functionality in BIOS settings on systems where remote management is not operationally required
• Deploy network-based intrusion prevention systems to detect and block exploitation attempts

# Example: Block Intel AMT ports using iptables (Linux gateway)
iptables -A INPUT -p tcp --dport 16992:16995 -j DROP
iptables -A FORWARD -p tcp --dport 16992:16995 -j DROP

# Example: Restrict AMT access to specific management subnet
iptables -A INPUT -p tcp --dport 16992:16995 -s 10.0.100.0/24 -j ACCEPT
iptables -A INPUT -p tcp --dport 16992:16995 -j DROP