CISA: Microsoft SharePoint RCE flaw now actively exploited
CISA warned on Wednesday that attackers have begun exploiting a high-severity Microsoft SharePoint remote code execution vulnerability patched in May. [...]
Cyber Brief · Jul 4 · 8 stories
Saturday, July 4, 2026 · sent to 1 subscribers
Attackers Exploit SimpleHelp CVE-2026-48558 to Deploy TaskWeaver and Djinn Stealer
An unknown threat actor has been observed exploiting a recently disclosed maximum-severity security flaw in SimpleHelp to deliver two previously unreported malware families, TaskWeaver and Djinn Stealer. The intrusion involves the exploitation of CVE-2026-48558 (CVSS score: 10.0), a critical authe…
CISA: Windows BlueHammer flaw now exploited by ransomware gangs
CISA confirmed on Monday that ransomware gangs are now exploiting a Microsoft Defender privilege escalation vulnerability, dubbed BlueHammer, that has previously been abused in zero-day attacks. [...]
SharePoint RCE CVE-2026-45659 Added to CISA KEV After Active Exploitation
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Wednesday added a high-severity flaw impacting Microsoft SharePoint Server to its Known Exploited Vulnerabilities (KEV) catalog, citing evidence of active exploitation. The vulnerability, tracked as CVE-2026-45659 (CVSS score: 8.8…
SimpleHelp vulnerability exploited to deliver mighty Djinn Stealer (CVE-2026-48558)
Attackers are exploiting CVE-2026-48558, a recently patched authentication bypass vulnerability in SimpleHelp RMM, to drop the novel Djinn Stealer malware on victim computers. The malware is capable of targeting Windows, macOS, and Linux systems, and “collects credentials associated with clou…
CISA Adds One Known Exploited Vulnerability to Catalog
CISA has added one new vulnerability to its Known Exploited Vulnerabilities (KEV) Catalog, based on evidence of active exploitation. CVE-2026-48558 SimpleHelp Authentication Bypass Vulnerability This type of vulnerability is a frequent attack vector for malicious cyber actors and poses significan…
Frangoteam FUXA SCADA/HMI
View CSAF Summary Successful exploitation of this vulnerability could allow an unauthenticated remote attacker to enumerate all user accounts and role assignments on a FUXA SCADA/HMI instance. The following versions of Frangoteam FUXA SCADA/HMI are affected: FUXA SCADA/HMI <=1.3.1 (CVE-2026-132…
CISA Warns of Actively Exploited Microsoft SharePoint Vulnerability
CISA says threat actors are exploiting a recently patched SharePoint remote code execution vulnerability (CVE-2026-45659). The post CISA Warns of Actively Exploited Microsoft SharePoint Vulnerability appeared first on SecurityWeek.