Recommended Free Tools
AMD’s fix for the EPYC microcode signature-verification vulnerability is delivered through platform-specific firmware from each server maker—not as one BIOS file for every EPYC system. AMD’s bulletins list mitigations for EPYC Naples, Rome, Milan and Genoa, spanning Zen 1 through Zen 4, as well as other EPYC families. To check a server, identify its exact model and platform, then compare its OEM BIOS and microcode with AMD’s minimums below.
What the AMD EPYC microcode vulnerability does
Microcode is low-level code used by a CPU to implement and control processor behavior. Google Security Research described the flaw as an insecure hash function used when the CPU validates microcode-update signatures. In the demonstrated attack, a malicious or unsigned patch could be accepted. Google said the attacker needs local administrator privileges; this is not an unauthenticated remote attack.
The risk is still significant after a host is compromised. AMD-SB-7033 associates CVE-2024-36347 with possible loss of integrity in x86 instruction execution, loss of confidentiality or integrity in privileged CPU context, and compromise of System Management Mode (SMM). AMD rated it 6.4, Medium, and said it had received no reports of the attack occurring in any system at the time of the bulletin.
A separate AMD bulletin, AMD-SB-3019, identifies CVE-2024-56161 and rates it 7.2, High. It describes potential loss of confidentiality and integrity for an SEV-SNP confidential guest. Keep the identifiers tied to their respective AMD bulletins: they describe different impacts and should not be used interchangeably. Google reported demonstrating the vulnerability on Zen 1 through Zen 4; its advisory later added Zen 5 after a reproduction in March 2025. The named EPYC families below are the server focus, not the full scope of AMD’s broader security issue.
What’s actually slowing this PC down?
Pick the symptom - the matching free tool is one click away.
#1 Best Overall
- Read Before You Buy — No Video Output: These adapters support charging and USB 2.0 data transfer, but cannot transmit video signals. Except for standard USB webcams (which use USB data only), they are not compatible with HDMI/DisplayPort cables, video-capable USB-C hubs, or docking stations with video output.
- Convert USB-A Ports to USB-C: Designed to connect USB-C earphones, cables, flash drives, card readers, and other USB-C accessories to standard USB-A ports. Plug-and-play with no drivers or software required.
- Aluminum Alloy Housing: Built with a sturdy aluminum alloy shell that aids in heat dissipation and protects against daily wear and scratches. Designed to maintain a stable and secure connection.
- Compact & Travel-Friendly: The ultra-compact design allows the adapter to stay plugged into your device without blocking adjacent ports or adding bulk, reducing wear and tear on your original USB ports.
- 12-Month Warranty: Backed by a 12-month manufacturer warranty for peace of mind. Designed to meet strict quality control standards for reliable everyday performance.
Which EPYC CPUs are affected, and what firmware version is the minimum?
AMD’s mitigation table gives platform firmware minimums for the families below. These are bulletin minimums, not necessarily the latest BIOS versions available from an OEM today. Check the complete system model and motherboard/server platform, because a CPU generation alone does not identify the correct firmware.
| EPYC family and codename | Zen generation | AMD minimum platform firmware | Microcode minimum listed by AMD |
|---|---|---|---|
| EPYC 7001, Naples | Zen 1 | NaplesPI 1.0.0.P | 0x08001278 |
| EPYC 7002, Rome | Zen 2 | RomePI 1.0.0.L | 0x0830107D |
| EPYC 7003, Milan / Milan-X | Zen 3 | MilanPI 1.0.0.F | 0x0A0011DB / 0x0A001244 |
| EPYC 9004, Genoa / Genoa-X / Bergamo / Siena | Zen 4 | GenoaPI 1.0.0.E | 0x0A101154 / 0x0A10124F / 0x0AA00219 |
| EPYC 4004, Raphael | Later family listed by AMD | ComboAM5PI 1.0.0.a | Not stated in AMD’s mitigation table |
| EPYC 9005, Turin | Later family listed by AMD | TurinPI 1.0.0.4 | 0x0B002147 |
AMD also lists embedded EPYC families and non-EPYC client and workstation products in its broader security guidance. Their exact applicability and firmware requirements depend on the specific product; use AMD’s bulletin and the system maker’s support page rather than extrapolating from this EPYC table.
Rank #2
- 5-in-1 USB-C Hub: Experience comprehensive connectivity featuring a Power Delivery input, two USB-A 2.0 ports, a USB-A 3.0 port, and an HDMI port. (Note: The USB-C power delivery input port is only for connecting an external wall charger to power your laptop and cannot power peripheral devices.)
- 90W Pass-Through Charging: Achieve optimal charging with 90W pass-through power to your laptop, supported by a total input of 100W, with the hub reserving 10W for operational efficiency. (Note: Wall charger not included.)
- Quick Data Transfers: Accelerate your productivity with rapid data transfers using a high-speed 5Gbps USB 3.0 port and two 480Mbps USB 2.0 ports.
- 4K HDMI Display: Enhance your visual experience with a hub capable of delivering 4K resolution at 30Hz in both mirror and extend modes. Please note that this hub is compatible with MacBook (macOS 12 and newer), Windows 10 and 11, ChromeOS, and laptops equipped with DP Alt Mode and Power Delivery. Note: This device is not compatible with Linux.
- What You Get: Anker USB-C Hub (5-in-1, 4K HDMI), welcome guide, 18-month warranty, and our friendly customer service.
How to check whether an EPYC server has the mitigation
- Identify the exact system. Record the server or motherboard manufacturer and model, installed EPYC family/codename, current BIOS or firmware version, and—if available—the reported microcode revision.
- Find the matching OEM support page. Search the manufacturer’s support site by the full server model or service identifier. Read the BIOS/firmware release notes for the security mitigation and confirm that the image is intended for that exact platform.
- Compare the platform minimum. Match the server’s platform to the table above. The PI version is AMD’s platform-firmware baseline; the BIOS version displayed by an OEM may use a different numbering scheme. Do not infer that an OEM BIOS is fixed solely because its version number looks higher than a PI version.
- Check prerequisites and update instructions. Follow the OEM’s required update sequence and reboot guidance. AMD warns that some older BIOS versions may fault if newer microcode is hot-loaded, so do not attempt a manual microcode load as a substitute for the supported firmware path.
- Install only the system-specific firmware. Apply the image from the server maker and reboot as instructed. Never flash firmware intended for a different board or server, even if it uses the same EPYC generation.
If the support page does not make clear whether a release includes AMD’s mitigation, ask the system OEM to confirm for the exact model and BIOS build. AMD directs product owners to their OEM for the product-specific BIOS update.
How to verify the fix for an SEV-SNP confidential guest
For SEV-SNP deployments, a BIOS update and reboot enable the mitigation to be attested. AMD says a confidential guest can verify that it is enabled through the SEV-SNP attestation report. Compare the report’s SNP TCB information with the mitigation details in AMD-SB-3019; a host’s claim that it was updated is not a replacement for guest-side verification.
The Tool Desk
Outbyte Driver Updater FREEScan for outdated or missing drivers - takes under a minuteDriver Scan →Outbyte PC Repair FREEClear out junk files and repair common Windows errorsFree Scan →Rank #3
- Sleek 7-in-1 USB-C Hub: Features an HDMI port, two USB-A 3.0 ports, and a USB-C data port, each providing 5Gbps transfer speeds. It also includes a USB-C PD input port for charging up to 100W and dual SD and TF card slots, all in a compact design.
- Flawless 4K@60Hz Video with HDMI: Delivers exceptional clarity and smoothness with its 4K@60Hz HDMI port, making it ideal for high-definition presentations and entertainment. (Note: Only the HDMI port supports video projection; the USB-C port is for data transfer only.)
- Double Up on Efficiency: The two USB-A 3.0 ports and a USB-C port support a fast 5Gbps data rate, significantly boosting your transfer speeds and improving productivity.
- Fast and Reliable 85W Charging: Offers high-capacity, speedy charging for laptops up to 85W, so you spend less time tethered to an outlet and more time being productive.
- What You Get: Anker USB-C Hub (7-in-1), welcome guide, 18-month warranty, and our friendly customer service.
When the mitigation was released
This is not a newly announced October 2026 patch. The dates in the vendor advisories describe a firmware mitigation distributed through OEMs:
- Google reported the vulnerability to AMD on September 25, 2024.
- AMD listed mitigations for EPYC 7001, 7002 and 7003 on December 13, 2024, and for Genoa on December 16, 2024.
- Google first published its advisory on February 3, 2025, added details on March 5, and subsequently added Zen 5 after a later reproduction/report in March 2025.
- AMD-SB-3019’s revision history records a June 10, 2025 update to actual release dates for EPYC 9005 and EPYC Embedded 3000.
Availability for a particular server still depends on the OEM’s BIOS release for that model. The severity scores above are assessments, not measurements of how often systems are affected or exploited; the cited advisories establish no affected-install-base or exploitation-rate statistic.
Quick Recap
Best Value
- 5-in-1 Connectivity: Equipped with a 4K HDMI port, a 5 Gbps USB-C data port, two 5 Gbps USB-A ports, and a USB C 100W PD-IN port. Note: The USB C 100W PD-IN port supports only charging and does not support data transfer devices such as headphones or speakers.
- Powerful Pass-Through Charging: Supports up to 85W pass-through charging so you can power up your laptop while you use the hub. Note: Pass-through charging requires a charger (not included). Note: To achieve full power for iPad, we recommend using a 45W wall charger.
- Transfer Files in Seconds: Move files to and from your laptop at speeds of up to 5 Gbps via the USB-C and USB-A data ports. Note: The USB C 5Gbps Data port does not support video output.
- HD Display: Connect to the HDMI port to stream or mirror content to an external monitor in resolutions of up to 4K@30Hz. Note: The USB-C ports do not support video output.
- What You Get: Anker 332 USB-C Hub (5-in-1), welcome guide, our worry-free 18-month warranty, and friendly customer service.
Rank #4
- Dual Converters, Infinite Potential：Includes 2× USB C male to USB A female adapters and 2× USB A male to USB C female adapters. Perfect for a wide range of uses—tablets with Bluetooth keyboards, expand USB ports on macbook, and more. Two different converters for all your daily needs
- Next-Level 10Gbps & 3A Charging: No more slow 480Mbps, this usb to usb c adapter has a transfer speed of up to 10Gbps, allowing you to do more transferring in less time. This usb adapter fits both USB A and USB C charger, supporting up to 3A fast charging
- Upgraded Exquisite Craftsmanship: With an aluminum alloy housing and metal connector, the usbc to usb adapter is extremely durable and sturdy. Rigorously tested to withstand more than 10,000 times of plugging and unplugging, ensuring long-lasting performance
- Broad Compatible: The usb c to usb adapter widely supports all USB C/ USB A devices like laptops, tablets, cellphones, car chargers, and phone chargers. Such as compatible with MacBook Pro/Air 2023/2022, Thunderbolt 4/3 Devices,Apple MagSafe Watch 9/8/7/SE/Ultra, iPad Pro 2022/2021, Samsung Galaxy S23/S20/S10, and iPhone 17/16/15 Pro. Plug and play
- Please Note: To reach 10Gbps speed, keep the cable under 3.3 ft. For USB A Male to USB C adapters, try flipping the USB C connector. USB C Male to USB A adapters support bidirectional 10Gbps transfer within 3.3 ft
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
