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RealTek Jungle SDK Vulnerability

Researchers at Palo Alto Network Unit 42 say that a vulnerability in RealTek Jungle SDK accounted for 40 percent of attacks they reviewed between August and October 2022. In a post, the researchers write, “As of December 2022, we’ve observed 134 million exploit attempts in total leveraging this vulnerability, and about 97% of these attacks occurred after the start of August 2022. At the time of writing, the attack is still ongoing.” The vulnerability in the SDK is the result of several memory corruption flaws and an arbitrary command injection issue. The vulnerability affects nearly 190 devices from more than 60 manufacturers.


  • We have an embedded chip vulnerability, which is dependent on updates from your vendor (D-Link, Netgear, LG, Belkin, Zytel, or Asus) for the fix. Make sure that you’re running the latest firmware on these devices. Check the firmware version on the vendor’s support site against your routers version if you’ve not seen an update in a while. If you can, use the IOCs to see if you’re impacted.
  • The large number of exploit attempts is not surprising given the high CVSS score for this vulnerability. I mean, cybercriminals can read and they see that it’s a RCE vulnerability that affects a large number of manufacturers and devices. The simple solution is to patch the vulnerable device. Until the patch is in place, monitor your network for signs that the device has been compromised.


Alex Lim is a certified IT Technical Support Architect with over 15 years of experience in designing, implementing, and troubleshooting complex IT systems and networks. He has worked for leading IT companies, such as Microsoft, IBM, and Cisco, providing technical support and solutions to clients across various industries and sectors. Alex has a bachelor’s degree in computer science from the National University of Singapore and a master’s degree in information security from the Massachusetts Institute of Technology. He is also the author of several best-selling books on IT technical support, such as The IT Technical Support Handbook and Troubleshooting IT Systems and Networks. Alex lives in Bandar, Johore, Malaysia with his wife and two chilrdren. You can reach him at [email protected] or follow him on Website | Twitter | Facebook

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