Overview
CVE-2025-27558 is a high-risk vulnerability that affects the IEEE P802.11-REVme D1.1 through D7.0 standard. This vulnerability allows FragAttacks against mesh networks that employ Wi-Fi Protected Access (WPA, WPA2, WPA3) or Wired Equivalent Privacy (WEP). Mesh networks, often utilized in home, office, and industrial environments, are at risk of significant data compromise due to this issue.
The severity of this vulnerability, combined with its widespread potential impact, makes it a critical issue that needs to be urgently addressed. Given that this vulnerability exists due to an incorrect fix for a previous vulnerability (CVE-2020-24588), it underscores the importance of rigorous testing in cybersecurity solutions.
Vulnerability Summary
CVE ID: CVE-2025-27558
Severity: Critical (CVSS: 9.1)
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: Potential system compromise or data leakage
Affected Products
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Product | Affected Versions
IEEE P802.11-REVme | D1.1 through D7.0
How the Exploit Works
An attacker exploiting CVE-2025-27558 would be able to inject arbitrary frames towards devices that support receiving non-SSP A-MSDU frames in mesh networks secured by WPA, WPA2, WPA3, or WEP. This is achieved by taking advantage of the FragAttacks vulnerability in the IEEE P802.11-REVme standard. The ability to inject arbitrary frames into the network can lead to unauthorized access, data leakage, and potential system compromise.
Conceptual Example Code
While exact exploitation methods will vary based on the attacker’s goal and the specific network configuration, the concept remains the same. Here is a conceptual pseudocode example of how this might be achieved:
def exploit(target_device):
create_malicious_frame = construct_frame("malicious_payload")
inject_frame(target_device, create_malicious_frame)
# Targeting a specific device in the network
exploit(target_device_IP)In this simplified example, an attacker creates a malicious frame and then injects that frame into the target device’s communication within the mesh network. The malicious frame could contain a variety of payloads, depending on the attacker’s objective.
Outcomes of the Exploit and Mitigation
Successful exploitation of this vulnerability could lead to unauthorized system access, compromise of the network, or data leakage. This is particularly concerning given the lack of required privileges or user interaction for this exploit.
Mitigation of this vulnerability should be a priority for any organization utilizing the affected version of the IEEE P802.11-REVme standard in their mesh networks. The recommended mitigation strategy is to apply vendor patches as soon as they become available. As a temporary measure, using Web Application Firewalls (WAF) or Intrusion Detection Systems (IDS) can offer some level of protection against potential exploits.