PS5 WebKit Also Affected by Use-After-Free Vulnerability (CVE-2021-30858)
Since testing of the Use-After-Free Vulnerability (CVE-2021-30858) in the PS4Scene indicated the bug is present in the PS4 WebKit, several in the PS5Scene also gave the Proof-of-Concept Test a try with the PS5 OSS WebKit on a PlayStation 5 console including @cedsaill4 (aka Cedsaill2 on Twitter) and @yyoossk (aka Cloud0835 on Twitter) with some positive feedback as well in the Tweets below. 
While many are still battling PlayStation 5 Scalpers to actually obtain a console for testing Private PS4 Exploits in hopes of a PS5 Jailbreak, below are some previous articles sorted by date with the oldest first for those new to the scene:
- PlayStation 5 Web Browser Confirmed
- PS5 WebKit Open Source Software (PS5 OSS) Live
- How to Access the Hidden PS5 Web Browser
- PS5Prxy Proxy Server App and PS5 EMC UART Pinouts
- Bypassing PS5 Browser Protection via JavaScript Execution
- PS5 Game Dumps (iSO Images) Surface
- PS5 Scene Rules: Official PS5 Release Standards
- SMAP Bypass FreeBSD 12 Vulnerability May Affect PS5
- Potential AMD SP (Secure Processor) Glitch for PS5 Fuses
As usual, it’s 
not advisable to update your PS5 console… Cheers to FxckThePolice for the heads-up on this earlier and @cedsaill4 via Twitter for the screenshot below! 