{"id":64155,"date":"2025-08-18T23:51:28","date_gmt":"2025-08-18T23:51:28","guid":{"rendered":""},"modified":"2025-11-01T05:38:04","modified_gmt":"2025-11-01T11:38:04","slug":"cve-2025-20093-privilege-escalation-vulnerability-in-intel-r-800-series-ethernet-kernel-mode-driver","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-20093-privilege-escalation-vulnerability-in-intel-r-800-series-ethernet-kernel-mode-driver\/","title":{"rendered":"CVE-2025-20093: Privilege Escalation Vulnerability in Intel(R) 800 Series Ethernet Kernel-Mode Driver<\/strong>"},"content":{"rendered":"

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

The cybersecurity landscape is constantly evolving, with new vulnerabilities being discovered regularly. One such vulnerability is CVE-2025-20093, a significant security flaw that affects the Linux kernel-mode driver for some Intel(R) 800 Series Ethernet products before version 1.17.2. Notably, this vulnerability could potentially allow an authenticated user to escalate<\/a> their privilege via local access, thereby compromising the system or leading to data leakage.
\nThe severity of this vulnerability<\/a> underscores the importance of robust and proactive cybersecurity measures. It affects a broad range of users, particularly those who are running older versions of the Intel(R) 800 Series Ethernet kernel-mode driver<\/a> on their systems. The potential for privilege escalation makes this vulnerability<\/a> especially serious, as it could give malicious actors control over affected systems.<\/p>\n

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

CVE ID: CVE-2025-20093
\nSeverity: High (CVSS score of 8.2)
\nAttack Vector: Local
\nPrivileges Required: User
\nUser Interaction: Required
\nImpact: Potential system compromise or data<\/a> leakage<\/p>\n

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

Product | Affected Versions<\/p>\n

Intel(R) 800 Series Ethernet Linux<\/a> Kernel-Mode Driver | Versions before 1.17.2<\/p>\n

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

This vulnerability arises from an improper check for unusual or exceptional conditions in the Linux kernel-mode<\/a> driver for certain Intel(R) 800 Series Ethernet products. If an authenticated user with local access to the system attempts to exploit this vulnerability<\/a>, they could potentially enable escalation of privilege.
\nIn essence, exploiting this vulnerability could allow a malicious user to obtain higher-level permissions<\/a> than they should have, which could lead to unauthorized actions. These actions could range from unauthorized system changes to data leakage<\/a>.<\/p>\n

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

While the specific exploitation method would depend on the system configuration<\/a> and the malicious actor’s intent, a theoretical exploitation might involve a shell command like the following:<\/p>\n

$ echo \"malicious_payload\" > \/proc\/driver\/intel_800_series_ethernet<\/code><\/pre>\n
In this conceptual example, `malicious_payload` represents the code or commands that a malicious actor would use to exploit the vulnerability and escalate their privileges<\/a>.<\/p>\n
Mitigation Guidance<\/strong><\/p>\n
To mitigate this vulnerability, users are advised to apply the vendor’s patch. Intel has released a patch for this vulnerability in version<\/a> 1.17.2 of the kernel-mode driver. Users should update their driver to this version or later.
\nIn addition to applying the vendor’s patch, users could also consider using a Web Application Firewall (WAF) or an Intrusion Detection System (IDS) as temporary mitigation measures. These tools can provide additional protection against potential exploits<\/a> by monitoring network traffic and blocking or alerting on suspicious activity. However, they should not be used as a substitute for applying the vendor’s patch.<\/p>\n","protected":false},"excerpt":{"rendered":"
Overview The cybersecurity landscape is constantly evolving, with new vulnerabilities being discovered regularly. One such vulnerability is CVE-2025-20093, a significant security flaw that affects the Linux kernel-mode driver for some Intel(R) 800 Series Ethernet products before version 1.17.2. Notably, this vulnerability could potentially allow an authenticated user to escalate their privilege via local access, thereby […]<\/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-64155","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