AMD Ships Dual Vulnerable Kernel Drivers in Razer Blade 16 BIOS Updater, Fueling BYOVD Fears

Updated:12:38 AM CEST Sep,05

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Gameguru Mania News - Apr,17 2026 -

AMD Ships Dual Vulnerable Kernel Drivers in Razer Blade 16 BIOS Updater, Fueling BYOVD Fears - tech
(hx) 06:06 PM CEST - Apr,17 2026 - Post a comment / read (3)
Security researcher @weezerOSINT has discovered that AMD is bundling the previously undocumented vulnerable driver BiosToolCommonDriver.sys (internal name: affdriver) inside the official Razer Blade 16 (2026 model) BIOS updater package. This WHQL- and AMD-signed driver, dated October 2023, exposes 18 powerful IOCTLs that let any admin-level process read/write arbitrary physical memory, PCI config space, CPU MSRs, perform raw port I/O, access BIOS flash, and bypass KASLR—capabilities ideal for ransomware and state-sponsored attacks.

It sits alongside the long-known dangerous amigendrv64.sys, which has been publicly flagged for years in BIOS tools from multiple vendors and frequently blocked by Windows security features. Neither driver carries a CVE, and BiosToolCommonDriver.sys is absent from Microsoft’s HVCI blocklist, leaving systems exposed to Bring Your Own Vulnerable Driver (BYOVD) exploits that can silently disable antivirus from kernel mode.

AMD is shipping a vulnerable kernel driver in the Razer Blade 16 BIOS updater. its sitting in the same folder as ANOTHER vulnerable driver that's been publicly known and documented as dangerous for years

both are signed. both can be weaponized by malware to bypass your… pic.twitter.com/P8GMEx7uQ7
— impulsive (@weezerOSINT) April 17, 2026

last 10 comments:

Sabot	(02:25 AM CEST - Apr,18 2026 )
As i said, AMD run by a bunch of incompetent bedroom based school kids. I wouldn’t touch AMD if it was free!

Csimbi	(11:38 AM CEST - Apr,18 2026 )
Can't wait for the chinese to flood the market with decent CPUs!

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