Short answer: It depends.
More useful answer: It is the market expectation that salaried employees devote their work-related efforts to the benefit of their employer. This issue is work-related, even if not related to your job description; your consideration for best efforts for fixing it is your salary.
If your employer wants to be extra special nice, they may decide to award a discretionary bonus. This will be calculated against your normal pay, in line with other discretionary bonuses [0], and not ordinarily on the incremental business value contributed by your discovery.
[0] At US companies in the tech industry there is wide discretion in these with the lower end being 0, the lower end of plausible being "Here is a gift card for $20 at Applebee's", the mid-range in the tech industry being ~$1k, and the upper range being "AppAmaGooFaceSoft can be quite generous when they want to be."
Broadly speaking if you want variable comp you generally have to be taking on substantially more risk that W-2 employees normally take. If you were a consultant who successfully sold an engagement with the same outcome, you might well be able to negotiate $50k or $100k for the outcome.
There exists substantial variability in work cultures around the world with regards to this question; I know of no geography which is more likely to award a bonus than the US and many which are materially less likely. There exists substantial variability between industries (with finance and sales-oriented professions being most likely to pay directly for an outcome) and within industries.