{"id":79112,"date":"2025-09-28T23:45:53","date_gmt":"2025-09-28T23:45:53","guid":{"rendered":""},"modified":"2025-10-28T12:32:40","modified_gmt":"2025-10-28T18:32:40","slug":"cve-2025-22836-critical-integrity-vulnerability-in-intel-r-800-series-ethernet","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-22836-critical-integrity-vulnerability-in-intel-r-800-series-ethernet\/","title":{"rendered":"CVE-2025-22836: Critical Integrity Vulnerability in Intel(R) 800 Series Ethernet<\/strong>"},"content":{"rendered":"

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

The cybersecurity landscape is a continuously evolving ecosystem, and a recent vulnerability identified in Intel\u2019s 800 Series Ethernet is a stark reminder of this fact. This article discusses the CVE-2025-22836, a significant vulnerability found in the Linux kernel-mode driver for some Intel(R) 800 Series Ethernet devices. This weakness could potentially enable an authenticated user to escalate privileges via local<\/a> access, paving the way for system compromise or data leakage. The impact of this vulnerability<\/a> is considerable, given the widespread usage of Intel Ethernet devices in various systems worldwide.<\/p>\n

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

CVE ID: CVE-2025-22836
\nSeverity: High (CVSS: 7.8)
\nAttack Vector: Local
\nPrivileges Required: Low
\nUser Interaction: Required
\nImpact: Potential system<\/a> compromise and data leakage<\/p>\n

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

Product | Affected Versions<\/p>\n

Intel(R) 800 Series Ethernet | Before 1.17.2<\/p>\n

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

This vulnerability is an instance of an integer overflow<\/a> or wraparound in the Linux kernel-mode driver for some Intel(R) 800 Series Ethernet devices. In essence, this means that an attacker, once authenticated, can manipulate the driver’s computations by causing an integer to overflow<\/a> or wraparound. This results in unexpected values that could potentially be used to enable escalation of privileges<\/a>. The immediate consequence of successful exploitation is unauthorized access at elevated privileges, leading to potential system compromise or data<\/a> leakage.<\/p>\n

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

Here is a conceptual example of how the vulnerability could be exploited. Please note that this is an oversimplified representation meant to illustrate the vulnerability<\/a>, and actual exploits may vary significantly in their complexity.<\/p>\n

$ echo \"exploit_code\" > \/dev\/intel_ethernet\n$ chmod +s \/dev\/intel_ethernet\n$ .\/dev\/intel_ethernet<\/code><\/pre>\n
In this scenario, an attacker writes an exploit code<\/a> to the device file for the Intel Ethernet driver. The ‘chmod’ command is used to set the SUID bit, allowing the exploit code<\/a> to run with the same permissions as the owner of the file, potentially escalating the attacker’s privileges if the file owner has higher privileges.<\/p>\n
Countermeasures and Mitigation<\/strong><\/p>\n
As a response to this vulnerability, users are strongly advised to apply the vendor patch to prevent potential exploitation. Intel has released a patch for this vulnerability in the 1.17.2 version of the driver<\/a>. If immediate patching is not possible, employing a Web Application Firewall (WAF) or Intrusion Detection System (IDS) could serve as a temporary mitigation measure, although this does not eliminate the vulnerability. These tools can help detect and block attempts to exploit this vulnerability<\/a>.
\nAs a best practice, regular security audits and updates are recommended to ensure the safety and integrity of your systems<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"
Overview The cybersecurity landscape is a continuously evolving ecosystem, and a recent vulnerability identified in Intel\u2019s 800 Series Ethernet is a stark reminder of this fact. This article discusses the CVE-2025-22836, a significant vulnerability found in the Linux kernel-mode driver for some Intel(R) 800 Series Ethernet devices. This weakness could potentially enable an authenticated user […]<\/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":[88],"product":[95],"attack_vector":[76],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-79112","post","type-post","status-publish","format-standard","hentry","category-uncategorized","vendor-linux","product-linux-kernel","attack_vector-privilege-escalation"],"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