Best update it:
https://www.slashgear.com/19-years-old-winrar-vulnerability-leads-to-over-100-malware-exploits-16569928/
Quote:
After being a staple on PCs for so many years, last month it was discovered that WinRAR, software used to open .zip archive files, has been vulnerable for the last 19 years to a bug that’s easily exploited by hackers and malware distributors. Fortunately, the software has been patched with the recent release of version 5.70, but after being unchecked for so long and installed by so many people, a new wave of malware is taking advantage.
I use 7-zip myself.
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