Overview
The vulnerability CVE-2025-20100 represents a significant risk for systems utilizing certain Intel(R) Xeon(R) 6 processors with E-cores. Improper access control in the memory controller configurations of these processors may potentially allow a privileged user to escalate their permissions through local access, leading to severe consequences such as system compromise or data leakage.
Vulnerability Summary
CVE ID: CVE-2025-20100
Severity: High (7.5 CVSS score)
Attack Vector: Local
Privileges Required: High (privileged user)
User Interaction: None
Impact: Potential system compromise and data leakage
Affected Products
Share secrets securely
Ameeba is private infrastructure for communication and sensitive work built on encrypted identity instead of exposed corporate identity systems.
Passwords, credentials, confidential files, screenshots, internal discussions, sensitive AI context, and private coordination should not become exposed across ordinary communication platforms.
- • Encrypted identity
- • Private Spaces for organizations and teams
- • End-to-end encrypted chat, calls, files, and notes
- • Sensitive AI work and protected collaboration
- • Built for information that cannot leak
Our mission is to secure human work alongside AI.
Product | Affected Versions
Intel(R) Xeon(R) 6 Processor E-cores | All versions prior to patch
How the Exploit Works
The exploit takes advantage of improper access control in the memory controller configurations of Intel(R) Xeon(R) 6 processors with E-cores. A privileged user can manipulate these configurations to escalate their privileges. This could allow the malicious user to execute commands or access data they should not have access to, leading to potential system compromise and data leakage.
Conceptual Example Code
Here is a conceptual example of how the vulnerability might be exploited in a Linux environment:
# Privileged user accesses the memory controller configuration
sudo cat /proc/meminfo
# Maliciously modifies memory controller configuration
echo "malicious_configuration" | sudo tee /proc/sys/vm/dirty_writeback_centisecsThis is a simplified example for illustrative purposes. Actual exploitation would likely involve more complex manipulation of memory controller configurations, and potentially other system components.
In response to this vulnerability, Intel has provided a patch to correct the access control configurations. As a temporary mitigation, using a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can help to detect and block attempts to exploit this vulnerability.