<ul> 
<li>Picture of the Week.</li> 
<li>CISA's Known Exploited Vulnerabilities Catalog.</li> 
<li>Lenovo UEFI Firmware Troubles.</li> 
<li>Everscale Blockchain Wallet.</li> 
<li>Java 15, 16, 17, and 18 received MUST UPDATES last week.</li> 
<li>Closing The Loop.</li> 
<li>Sci-Fi.</li> 
<li>SpinRite.</li> 
<li>The 0-Day Explosion.</li></ul> 
We invite you to read our show notes at <a href="https://www.grc.com/sn/SN-868-Notes.pdf">https://www.grc.com/sn/SN-868-Notes.pdf</a> 
Hosts: <a href="https://twit.tv/people/steve-gibson">Steve Gibson</a> and <a href="https://twit.tv/people/leo-laporte">Leo Laporte</a> 
Download or subscribe to this show at <a href="https://twit.tv/shows/security-now">https://twit.tv/shows/security-now</a>. 
Get episodes ad-free with Club TWiT at <a href="https://twit.tv/clubtwit" rel="payment">https://twit.tv/clubtwit</a> 
You can submit a question to Security Now! at the <a href="https://www.grc.com/feedback.htm" target="_blank">GRC Feedback Page</a>. 
For 16kbps versions, transcripts, and notes (including fixes), visit Steve's site: <a href="https://www.grc.com/securitynow.htm" target="_blank">grc.com</a>, also the home of the best disk maintenance and recovery utility ever written <a href="https://www.grc.com/sr/spinrite.htm" target="_blank">Spinrite 6</a>.

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Security Now 868: The 0-Day Explosion

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