Format string vulnerability in the NSRunAlertPanel function in eBay Skype for Mac 1.5.*.79 and earlier allows remote attackers to cause a denial of service (application crash) and possibly execute arbitrary code via a malformed Skype URL, as originally reported to involve a null dereference.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.279
EPSS Ranking 96.3%