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H-ISAC TLP White Threat Bulletin: Libraesva ESG Flaw Exploited by Nation-State Threat Actor (CVE-2025-59689

Libraesva patched a command injection vulnerability CVE-2025-59689 in Libraesva's Email Security Gateway (ESG) solution.
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H-ISAC TLP White Vulnerability Bulletins TLP White Critical Vulnerability in WatchGuard Firebox Firewalls (CVE-2025-9242)

On September 17, 2025, WatchGuard released a security advisory regarding a critical vulnerability, tracked as CVE-2025-9242.
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H-ISAC TLP White Threat Bulletin SonicWall MySonicWall Cloud Backup Incident

SonicWall has disclosed a security incident in which threat actors gained unauthorized access to backup firewall preference files stored in its cloud service,
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H-ISAC TLP White Threat Bulletin VoidProxy: A New and Evasive Phishing-as-a-Service Framework

On September 11, 2025, Okta discovered a sophisticated Phishing-as-a-Service framework named VoidProxy. Due to its evasive capabilities and modular design, it has emerged as a significant threat.
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H-ISAC TLP White Threat Bulletin: Critical SAP S/4HANA Vulnerability Actively Exploited (CVE-2025-42957) Sept. 9, 2025

Exploitation of the SAP S/4HANA flaw, tracked as CVE-2025-42957, has been disclosed.
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H-ISAC TLP White FS-ISAC Artificial Intelligence White Paper Series September 9, 2025

FS-ISAC has released several white papers discussing AI best practices.
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H-ISAC TLP White Hacking Healthcare - Weekly Blog - August 28, 2025

This week, Health-ISAC®'s Hacking Healthcare® examines evidence that the HIPAA Security Rule effort launched at the end of the Biden administration may be moving ahead under the Trump administration and more.
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H-ISAC TLP White Vulnerability Report Citrix Discloses a Trio of Vulnerabilities Affecting NetScaler ADC and NetScaler Gateway

On August 26, 2025, Citrix released a security bulletin (CTX694938) to address three critical vulnerabilities affecting its NetScaler ADC and NetScaler Gateway products: CVE-2025-7775, CVE-2025-7776, and CVE-2025-8424.
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H-ISAC TLP White Threat: Russian State-Sponsored Espionage Group Static Tundra Compromises Unpatched End-Of-Life Network Devices

A highly sophisticated Russian state-sponsored cyber espionage group, known as Static Tundra, has been targeting organizations of strategic interest within critical infrastructure verticals.