These are unique IDs that you may use to refer to software security
vulnerabilities (one ID per vulnerability), much like we use
CVE IDs.
The difference is that OVE IDs are trivial and quick to obtain,
unlike CVE IDs, but as a consequence OVE IDs are issued without any
verification, and moreover there's currently no mechanism to reject wrongly
assigned/used OVE IDs, nor to merge duplicates.
Don't worry about having wasted IDs,
it's OK.
See also:
Distributed Weakness Filing (DWF)
(announcement).
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