Do these 3 things before closing this tab:
1Fix the driver behind crashes, sound loss and screen glitches2Clear out junk files and repair common Windows errors3Scan for outdated or missing drivers - takes under a minuteGoogle confirmed on June 17, 2021, that attackers were exploiting a high-severity Chrome flaw, CVE-2021-30554, in WebGL. The company released Chrome 91.0.4472.114 for Windows, Mac, and Linux to address it. SecurityWeek called this Google’s sixth Chrome point-update that year for an exploited flaw; that count describes its reporting as of that date, not a final tally of every zero-day across platforms.
What Google confirmed
Google’s June 17, 2021, Chrome Stable release notice announced version 91.0.4472.114 for desktop users on Windows, Mac, and Linux. Google said the update would roll out over the coming days or weeks, so it might not have appeared for every user immediately.
The notice identified CVE-2021-30554 as a high-severity use-after-free vulnerability in WebGL. It stated: “Google is aware that an exploit for CVE-2021-30554 exists in the wild.” In other words, Google had evidence the flaw was being exploited, rather than describing only a theoretical vulnerability.
What “sixth” means
SecurityWeek reported on June 17 that the update was the sixth Chrome point-update that year to fix flaws Google said were being exploited. The ordinal belongs to SecurityWeek’s contemporaneous count of Chrome patch events as of that report. It is not a universal count of all 2021 zero-days, nor a final year-end total.
#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.
Other figures published later use different scopes and should not be treated as revisions of that count:
| Figure | What it counts | Source and qualification |
|---|---|---|
| Six | Chrome point-updates for exploited flaws as of June 17, 2021 | SecurityWeek’s report published June 17, 2021. |
| Nine | Zero-days affecting Chrome, Android, Apple, and Microsoft that Google said it reported in 2021 | Google Threat Analysis Group’s retrospective published May 19, 2022; this is a multi-platform figure, not Chrome-only. Google TAG. |
| 80 | Zero-days exploited in the wild across vendors in 2021 | Mandiant Threat Intelligence’s 2022 analysis, which covered more than 200 vulnerabilities it identified as exploited in the wild from 2012 through 2021 and noted that findings may be supplemented as incidents are discovered. Mandiant. |
Google TAG also reported that 33 publicly disclosed zero-day exploits had been used in attacks by the halfway point of 2021, 11 more than the full-year total for 2020. Separately, Mandiant said 75% of the zero-day vulnerabilities it analyzed from 12 vendors in 2021 involved Microsoft, Apple, and Google products. These broader statistics provide context, but neither identifies additional details about CVE-2021-30554.
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.
What the public advisory does not establish
Google’s release notice identifies the vulnerability, affected component, severity, exploitation status, release date, and patched version. It does not publicly name an attacker, describe victims or a campaign, or explain the exploit’s technical chain. Those details should not be inferred from reports about other Chrome vulnerabilities.
For example, Google TAG’s July 14, 2021, analysis described campaigns involving CVE-2021-21166 and CVE-2021-30551, two different Chrome renderer vulnerabilities. Google said it believed those two were used by the same actor and described one-time links sent by email to targets it believed were in Armenia. Those findings are about those CVEs, not CVE-2021-30554. Google TAG’s analysis.
Free tools Windows power users keep installed
One-click scans. No signup required.
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.
How to protect Chrome users
The practical response is to install the browser update rather than seek a separate cleanup product. Google’s later guidance says users should install Chrome updates when prompted and enterprise administrators should keep auto-update enabled. Google’s guidance on zero-day protection.
- Personal desktop: Allow Chrome to update, then relaunch the browser if it asks you to do so. The release covered Windows, Mac, and Linux, with a staged rollout.
- Managed devices: Ask your administrator about update timing if your organization controls Chrome deployment; Google advises administrators to keep auto-update enabled.
Google’s March 2022 explanation also cautioned that rising public counts of exploited flaws can reflect greater vendor transparency and improved detection, and that absolute counts alone do not measure security risk. Google’s explanation.
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.
