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CISA: Windows BlueHammer flaw now exploited by ransomware gangs

BACKGROUND
1 SIGNALFIRST DETECTED 30 June 2026
Narrative synthesis pending — 1 signal collected.
How the story developed
Other feeds and industry voices
23 Apr
CISA orders feds to patch BlueHammer flaw exploited as zero-day

CISA has ordered U.S. federal agencies to patch a Microsoft Defender privilege escalation flaw (dubbed BlueHammer) that has been exploited in zero-day attacks. [...]

REPORT · HOW · BleepingComputerOPEN STORY
18 Aug
CISA: Windows Task Host flaw now exploited by ransomware gangs

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has confirmed that ransomware gangs are also exploiting a high-severity Windows Task Host vulnerability that was

REPORT · WHAT · BleepingComputerOPEN STORY
10 Sept
CISA: WatchGuard RCE flaw now exploited in ransomware attacks

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has confirmed that ransomware gangs are also exploiting a critical WatchGuard Firebox firewall vulnerability,

REPORT · WHAT · BleepingComputerOPEN STORY
15 Sept
CISA: Critical VMware RCE flaw now exploited by ransomware gangs

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) warned security teams that ransomware gangs have now joined ongoing attacks exploiting a critical VMware vCenter

REPORT · WHAT · BleepingComputerOPEN STORY
24 Sept
CISA: Ransomware gangs now exploiting critical TeamCity flaw

​The U.S. Cybersecurity and Infrastructure Security Agency (CISA) warned federal agencies on Wednesday that ransomware gangs are now also exploiting a critical JetBrains TeamCity

REPORT · WHAT · BleepingComputerOPEN STORY
8 Apr
CISA orders feds to patch exploited Ivanti EPMM flaw by Sunday

CISA has given U.S. government agencies four days to secure their systems against a critical-severity vulnerability in Ivanti Endpoint Manager Mobile (EPMM) that has been

REPORT · HOW · BleepingComputerOPEN STORY
15 Apr
CISA flags Windows Task Host vulnerability as exploited in attacks

CISA warned U.S. government agencies to secure their systems against a Windows Task Host privilege escalation vulnerability that could allow attackers to gain SYSTEM privileges.

REPORT · WHAT · BleepingComputerOPEN STORY
14 Sept
CISA: Hackers now exploit max severity GitLab flaw in attacks

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) warned that hackers are now exploiting a maximum-severity GitLab vulnerability in attacks. [...]

REPORT · HOW · BleepingComputerOPEN STORY
Sources
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