Security researchers at SentinelLabs uncovered the problem and notified Dell in December of 2020; the company now has a patch available for you to fix the vulnerability (via TechRadar).
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The security flaw is a collection of five vulnerabilities discovered by SentinelLabs in the dbultil_2_3.sys driver. Two were memory corruption issues, two were security failures from lack of input validation and finally, a logic issue that could be leveraged for a denial-of-service. The good news is that according to Dell there has been no evidence to date that the flaw was exploited in the wild despite its longevity. However, now that it has been identified it is advisable to patch the problem as soon as possible. As you can imagine the number of laptops and desktops impacted over the course of twelve years is significant, likely in the hundreds of millions.
