Loading vulnerability…
CVE-2025-38086 is an uninitialized-memory access in the Linux kernel CH9200 network driver during the MDIO restart path. mii_nway_restart() invokes ch9200_mdio_read() through the MDIO read callback. ch9200_mdio_read() calls control_read() to populate a local buffer, but previously ignored its return value. control_read() copies received data only when the USB control transfer returns the expected size; on an error or short transfer, the local buffer remains uninitialized. ch9200_mdio_read() then reads two bytes from that buffer and returns them as an MDIO register value. The fix validates the control_read() result and exits early if the transfer fails.
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.
14 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
An uninitialized-memory access flaw in the Linux kernel CH9200 network driver during mii_nway_restart.
An uninitialized-access vulnerability in the Linux kernel CH9200 network driver during mii_nway_restart.
An uninitialized-memory access vulnerability in the Linux kernel CH9200 network driver during mii_nway_restart.
An uninitialized-access vulnerability in the Linux kernel CH9200 network driver during mii_nway_restart.
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.