{"id":44974,"date":"2025-05-28T21:10:06","date_gmt":"2025-05-28T21:10:06","guid":{"rendered":""},"modified":"2025-09-08T17:18:30","modified_gmt":"2025-09-08T23:18:30","slug":"cve-2025-27558-critical-vulnerability-in-ieee-p802-11-revme-allowing-fragattacks-against-mesh-networks","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-27558-critical-vulnerability-in-ieee-p802-11-revme-allowing-fragattacks-against-mesh-networks\/","title":{"rendered":"CVE-2025-27558: Critical Vulnerability in IEEE P802.11-REVme Allowing FragAttacks against Mesh Networks<\/strong>"},"content":{"rendered":"

Overview<\/strong><\/p>\n

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<\/a> compromise due to this issue.
\nThe severity of this vulnerability<\/a>, combined with its widespread potential impact, makes it a critical issue that needs to be urgently addressed. Given that this vulnerability exists due<\/a> to an incorrect fix for a previous vulnerability (CVE-2020-24588), it underscores the importance of rigorous testing in cybersecurity solutions.<\/p>\n

Vulnerability Summary<\/strong><\/p>\n

CVE ID: CVE-2025-27558
\nSeverity: Critical (CVSS: 9.1)
\nAttack Vector: Network
\nPrivileges Required: None
\nUser Interaction: None
\nImpact: Potential system<\/a> compromise or data leakage<\/p>\n

Affected Products<\/strong><\/p>\n

Product | Affected Versions<\/p>\n

IEEE P802.11-REVme | D1.1 through D7.0<\/p>\n

How the Exploit Works<\/strong><\/p>\n

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<\/a> 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<\/a>. The ability to inject arbitrary frames into the network can lead to unauthorized access, data leakage, and potential system<\/a> compromise.<\/p>\n

Conceptual Example Code<\/strong><\/p>\n

While exact exploitation methods will vary based on the attacker’s<\/a> goal and the specific network configuration, the concept remains the same. Here is a conceptual pseudocode example of how this might be achieved:<\/p>\n

def exploit(target_device):\ncreate_malicious_frame = construct_frame(\"malicious_payload\")\ninject_frame(target_device, create_malicious_frame)\n# Targeting a specific device in the network\nexploit(target_device_IP)<\/code><\/pre>\n
In this simplified example, an attacker creates a malicious frame and then injects<\/a> 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.<\/p>\n
Outcomes of the Exploit and Mitigation<\/strong><\/p>\n
Successful exploitation of this vulnerability could lead to unauthorized system<\/a> access, compromise of the network, or data leakage. This is particularly concerning given the lack of required privileges or user<\/a> interaction for this exploit.
\nMitigation of this vulnerability should be a priority for any organization utilizing<\/a> 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.<\/p>\n","protected":false},"excerpt":{"rendered":"
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 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"footnotes":""},"categories":[1],"tags":[],"vendor":[82],"product":[],"attack_vector":[],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-44974","post","type-post","status-publish","format-standard","hentry","category-uncategorized","vendor-microsoft"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t