 FOSTER CITY, Calif., Aug. 5, 2021 PRNewswire -- Qualys, Inc. NASDAQ: QLYS, a pioneer and leading provider of cloud-based security and compliance solutions, today announced that its renowned research team won two Pwnie Awards at Black Hat USA 2021: Best Privilege Escalation Bug for CVE-2021-3156: Heap-Based Buffer Overflow in Sudo Baron Samedit, and Most Under-Hyped Research for 21Nails. 