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CVE-2025-21086 is an improper input validation vulnerability in Linux kernel-mode drivers for some Intel 700 Series Ethernet controllers. According to the provided content, affected versions are driver releases before 2.28.5. The flaw exists in kernel-resident driver code handling crafted input, where insufficient validation of attacker-controlled or user-reachable input can allow an authenticated local user to reach unsafe kernel code paths. Because the vulnerable component executes in kernel mode, successful exploitation can result in privilege escalation on the affected Linux host. The issue is described by Intel under advisory INTEL-SA-01335 and affects Intel 700 Series devices including models such as I710, X710, XL710, and XXV710.
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A privilege escalation vulnerability caused by improper input validation in Linux kernel-mode drivers for Intel 700 Series Ethernet controllers, allowing authenticated local users to gain elevated privileges on affected systems.
A privilege escalation vulnerability caused by improper input validation in Intel 700 Series Ethernet Linux kernel-mode drivers before version 2.28.5.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
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Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.