---
title: Important information about Log4Shell/Log4j (CVE-2021-44228)
description: New firmware updates affecting the groov family of products are available now.
image: https://blog.opto22.com/hubfs/social-suggested-images/info.opto22.comhubfsgroovEPIC-w-Phone-1.jpg
---

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# Important information about Log4Shell/Log4j (CVE-2021-44228)

# OptoBlog

# Important information about Log4Shell/Log4j (CVE-2021-44228)

Posted by [Janice Colmer](https://blog.opto22.com/optoblog/author/janice-colmer) on Dec 16, 2021, 7:20:12 AM

- [Tweet](https://twitter.com/share)

### Which products are affected, and how to update your affected systems

Opto 22 engineers have addressed the Log4Shell/Log4j vulnerability recently reported in news media this week. [F](https://blog.opto22.com/optoblog/new-update-to-address-log4shell/log4j-exploit#Updates)[irmware and software updates for affected products are now available.](https://blog.opto22.com/optoblog/new-update-to-address-log4shell/log4j-exploit#Updates) Opto 22 urges you to apply these updates immediately, regardless of whether you're using *groov* View.

The Log4j vulnerability affects all products running *groov* View software, including: 

- GRV-EPIC-PR1, GRV-EPIC-PR2
- GROOV-AR1, GROOV-AR1-BASE, GROOV-AR1-SNAP
- GROOV-AT1, GROOV-AT1-SNAP
- GROOV-SVR-WIN, GROOV-SVR-WIN-BASE, GROOV-SVR-WIN-SNAP

Please see [this Opto KB Article (KB90085)](https://www.opto22.com/support/resources-tools/knowledgebase/kb90085) for more details.

Please note that the following Opto 22 products are NOT affected:

- *groov* RIO (GRV-R7-MM1001-10 and GRV-R7-MM2001-10)
- SNAP I/O brains, SNAP PAC controllers, and the PAC Project software suite
- Legacy products including *mistic*, Optomux, FactoryFloor, and others 

![info.opto22.comhubfsgroovEPIC-w-Phone-1](https://blog.opto22.com/hs-fs/hubfs/social-suggested-images/info.opto22.comhubfsgroovEPIC-w-Phone-1.jpg?width=240&name=info.opto22.comhubfsgroovEPIC-w-Phone-1.jpg)

### How to obtain updated firmware & software

For all groov EPIC users (GRV-EPIC-PR1, GRV-EPIC-PR2), please reference the [groov EPIC Firmware Readme](https://www.opto22.com/support/resources-tools/documents/rm-groov-epic-processor-readme) for complete details. Log in to your [MyOpto](https://www.opto22.com/logon?returnurl=%2Fmy-opto%2Fmanage-groov&utm_campaign=groov%20EPIC%203.0&utm_source=hs_email&utm_medium=email&_hsenc=p2ANqtz-_aRuca9AejNaF3lJ5nB2butQy47UoqXC_3iDn6V-S17KG0WAQVWIFk1gYwWMccItdYIQDz) account or visit [manage.groov.com](https://www.opto22.com/logon?returnurl=%2Fmy-opto%2Fmanage-groov&utm_campaign=groov%20EPIC%203.0&utm_source=hs_email&utm_medium=email&_hsenc=p2ANqtz-_aRuca9AejNaF3lJ5nB2butQy47UoqXC_3iDn6V-S17KG0WAQVWIFk1gYwWMccItdYIQDz) to download your free version 3.3.2 upgrade today.

[![UPDATE TO FIRMWARE 3.3.2](https://hubspot-no-cache-na2-prod.s3.amazonaws.com/cta/default/439485/e52da105-2429-4f14-a558-d70109eefb75.png)](https://hubspot-cta-redirect-na2-prod.s3.amazonaws.com/cta/redirect/439485/e52da105-2429-4f14-a558-d70109eefb75)

For groov Server for Windows (GROOV-SVR-WIN) or groov Edge Appliance (GROOV-AT1, GROOV-AR1) users, visit [manage.groov.com](https://www.opto22.com/logon?returnurl=%2Fmy-opto%2Fmanage-groov&utm_campaign=groov%20View%204.1a%20update&utm_source=hs_email&utm_medium=email&_hsenc=p2ANqtz-_Ljzb-rKBd5Q4uzdWZpukVU1RsnGulpT02rr0YgpSdB30OwnaHDEBB4OPXaDgkKtV73lcX) to get your update.

![groov Edge Appliance and groov Server for Windows](https://blog.opto22.com/hs-fs/hub/439485/file-2080072203.jpg?width=240&name=file-2080072203.jpg)

NOTE: You must have current maintenance to update these products. If your maintenance has expired, you can [order a *groov* Maintenance 10-Year from our website,](https://www.opto22.com/products/product-container/groov-mnt-10yr?utm_campaign=groov%20View%204.1a%20update&utm_source=hs_email&utm_medium=email&_hsenc=p2ANqtz-_Ljzb-rKBd5Q4uzdWZpukVU1RsnGulpT02rr0YgpSdB30OwnaHDEBB4OPXaDgkKtV73lcX) and we will waive any charges. Contact [PCS@opto22.com](mailto:PCS@opto22.com) for more information.

[![GET GROOV VIEW 4.3g](https://hubspot-no-cache-na2-prod.s3.amazonaws.com/cta/default/439485/108f1b1f-5de8-4c45-9113-216aaf0403bb.png)](https://hubspot-cta-redirect-na2-prod.s3.amazonaws.com/cta/redirect/439485/108f1b1f-5de8-4c45-9113-216aaf0403bb)

Please see the [groov View Readme ](https://www.opto22.com/support/resources-tools/documents/rm-groov-view-readme)for complete *groov* View R4.3g release details.

### More information about Log4Shell/Log4j

On December 9th, 2021, a new vulnerability was reported (CVE-2021-44228) against a common Java logging library, “log4j”. This vulnerability makes affected systems susceptible to having remote attackers be able to run malicious programs on said systems. This is also known as an RCE, or Remote Code Execution attack.

More detailed information about this vulnerability can be found at NIST.gov here:  
[https://nvd.nist.gov/vuln/detail/CVE-2021-44228](https://nvd.nist.gov/vuln/detail/CVE-2021-44228)

If you have any questions about updating your affected products, please reach out to us. We're eager to help.

- Product Support: [support@opto22.com](mailto:support@opto22.com)
- Live chat (click link at lower right on Opto22.com)
- [Contact Us](https://www.opto22.com/support/contact-us) page

 Topics: [Updates](https://blog.opto22.com/optoblog/topic/updates), [Firmware](https://blog.opto22.com/optoblog/topic/firmware), [groov server for windows](https://blog.opto22.com/optoblog/topic/groov-server-for-windows), [groov View](https://blog.opto22.com/optoblog/topic/groov-view), [groov EPIC](https://blog.opto22.com/optoblog/topic/groov-epic), [Log4Shell](https://blog.opto22.com/optoblog/topic/log4shell), [Log4j](https://blog.opto22.com/optoblog/topic/log4j)

### Written by [Janice Colmer](https://blog.opto22.com/optoblog/author/janice-colmer)

<https://blog.opto22.com/optoblog/author/janice-colmer>

Janice has worked at Opto 22 for over 20 years and is part of the marketing team that strives to share new and relevant content with the industrial automation industry. She enjoys books, camping, country music, and spending time with family and friends.

Find me on:

[LinkedIn](https://www.linkedin.com/in/jcolmer/)

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- [analisisydatos (1)](https://blog.opto22.com/optoblog/topic/analisisydatos)
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- [automatizacion (1)](https://blog.opto22.com/optoblog/topic/automatizacion)
- [blockchain (1)](https://blog.opto22.com/optoblog/topic/blockchain)
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- [customer service (1)](https://blog.opto22.com/optoblog/topic/customer-service)
- [encryption (1)](https://blog.opto22.com/optoblog/topic/encryption)
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- [groov maintenance license (1)](https://blog.opto22.com/optoblog/topic/groov-maintenance-license)
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- [instrumentacion (1)](https://blog.opto22.com/optoblog/topic/instrumentacion)
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- [json (1)](https://blog.opto22.com/optoblog/topic/json)
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- [network segmentation (1)](https://blog.opto22.com/optoblog/topic/network-segmentation)
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- [predictive maintenance (1)](https://blog.opto22.com/optoblog/topic/predictive-maintenance)
- [redundancy (1)](https://blog.opto22.com/optoblog/topic/redundancy)
- [reverse osmosis (1)](https://blog.opto22.com/optoblog/topic/reverse-osmosis)
- [sdk (1)](https://blog.opto22.com/optoblog/topic/sdk)
- [supply chain (1)](https://blog.opto22.com/optoblog/topic/supply-chain)
- [temperature sensor (1)](https://blog.opto22.com/optoblog/topic/temperature-sensor)
- [time proportional output (1)](https://blog.opto22.com/optoblog/topic/time-proportional-output)
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