Loading vulnerability…
CVE-2025-39971 is an index-validation vulnerability in the Linux kernel Intel i40e network driver. The i40e_vc_config_queues_msg() function iterates over vf->ch[idx] without ensuring that idx is within the range of active and initialized traffic classes. A malformed index can therefore cause an out-of-bounds memory access during configuration-queue message handling.
Mallory correlates every CVE against your assets, your vendors, and active adversary campaigns. Know which vulnerabilities matter for you, not just which ones are loud.
What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
What an attacker gets, and what they’ve been doing with it.
If you can’t patch tonight, do this now.
Patch, then assume compromise.
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
43 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A high-severity Linux kernel i40e driver vulnerability caused by insufficient index validation while processing virtual-function queue configuration messages. It affects Echo Linux packages prior to version 6.1.158-1.
Linux kernel vulnerability addressed by the referenced AlmaLinux/TuxCare update.
A vulnerability referenced by the Unity Linux security advisory/check UTSA-2026-098834. The supplied content does not describe the underlying flaw type or affected component.
A Linux kernel vulnerability in the i40e driver involving improper idx validation in config queues handling, fixed by ensuring the index is within the range of active or initialized traffic classes when iterating over vf->ch[idx] in i40e_vc_config_queues_msg().
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.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.