InfoSecBulletin Cybersecurity for mankind

A distributed denial-of-service attack hit a big user-content platform, sending an amazing 2.45 billion malicious requests in only 5 hours. Security company DataDome stopped the attack right away, so real users face no disruption. Experts looking into the event found that the attack used 1.2 million different IP addresses. The …

Palo Alto Networks is fixing a serious PAN-OS zero-day flaw that was used to hack some of its firewall. Tracked as CVE-2026-0300, this issue is a buffer overflow that affects the User-ID Authentication Portal (Captive Portal) service of PAN-OS software. “Limited exploitation has been observed targeting Palo Alto Networks User-ID …

Qualcomm has unveiled its May 2026 Security Bulletin, revealing serious flaws with its software and hardware. The bulletin points out several Critical issues that could let unauthorized users access and damage memory on millions of devices using Qualcomm chipsets. The company is sharing updates with Original Equipment Manufacturers (OEMs) and …