HackerFeeds

CyberSecurity News

BlueHammer Vulnerability Exploited in Ransomware Attacks

SecurityWeek
· June 30, 2026

AI summary

A vulnerability in Microsoft Defender, identified as CVE-2026-33825, was exploited in the wild before patches were available. This exploit was used in ransomware attacks, taking advantage of the zero-day vulnerability. The issue is referred to as the BlueHammer Vulnerability.

Read the full article at SecurityWeekwww.securityweek.com/bluehammer-vulnerability-exploited-in-ransomware-attacks/

This is an AI-generated brief aggregated by HackerFeeds for convenience and grounded in the source’s own summary; the related CVE, threat-group and country data is from HackerFeeds’ own indexes. The original article is the authoritative source — all rights belong to SecurityWeek.