Hacking

Pierluigi Paganini July 28, 2025
China-linked group Fire Ant exploits VMware and F5 flaws since early 2025

China-linked group Fire Ant exploits VMware and F5 flaws to stealthily breach secure systems, reports cybersecurity firm Sygnia. China-linked cyberespionage group Fire Ant is exploiting VMware and F5 vulnerabilities to stealthily access secure, segmented systems, according to Sygnia. Since early 2025, the group has targeted virtualization and networking infrastructure, primarily VMware ESXi and vCenter environments. […]

Pierluigi Paganini July 24, 2025
U.S. CISA adds CrushFTP, Google Chromium, and SysAid flaws to its Known Exploited Vulnerabilities catalog

U.S. CISA adds CrushFTP, Google Chromium, and SysAid flaws to its Known Exploited Vulnerabilities catalog. The U.S. Cybersecurity and Infrastructure Security Agency (CISA) added CrushFTP, Google Chromium, and SysAid flaws to its Known Exploited Vulnerabilities (KEV) catalog. Below are the descriptions for these flaws: This week CrushFTP warned of a zero-day, tracked as CVE-2025-54309 (CVSS score of 9.0), […]

Pierluigi Paganini July 23, 2025
U.S. CISA urges FCEB agencies to fix two Microsoft SharePoint flaws immediately and added them to its Known Exploited Vulnerabilities catalog

U.S. Cybersecurity and Infrastructure Security Agency (CISA) adds two Microsoft SharePoint flaws to its Known Exploited Vulnerabilities catalog. The U.S. Cybersecurity and Infrastructure Security Agency (CISA) added two Microsoft SharePoint flaws to its Known Exploited Vulnerabilities (KEV) catalog. Below are the descriptions for these flaws: This week, Microsoft warned of a SharePoint zero-day vulnerability, tracked as […]

Pierluigi Paganini July 23, 2025
Microsoft linked attacks on SharePoint flaws to China-nexus actors

Microsoft linked SharePoint exploits to China-nexus groups Linen Typhoon, Violet Typhoon, and Storm-2603, active since July 7, 2025. Microsoft confirmed that China-linked groups Linen Typhoon, Violet Typhoon, and Storm-2603 exploited SharePoint flaws for initial access as early as July 7, 2025. “As of this writing, Microsoft has observed two named Chinese nation-state actors, Linen Typhoon […]

Pierluigi Paganini July 22, 2025
Cisco confirms active exploitation of ISE and ISE-PIC flaws

Cisco warns of active exploits targeting Identity Services Engine (ISE) and ISE-PIC flaws, first observed in July 2025. Cisco confirmed attempted exploitation in the wild of recently disclosed ISE and ISE-PIC flaws (CVE-2025-20281, CVE-2025-20282, CVE-2025-20337), updating its advisory after detecting attacks in July 2025. “Multiple vulnerabilities in Cisco Identity Services Engine (ISE) and Cisco ISE […]

Pierluigi Paganini July 22, 2025
SharePoint under fire: new ToolShell attacks target enterprises

While SentinelOne did not attribute the attack to a specific threat actor, The Washington Post linked it to China-nexus acors. On July 19, Microsoft confirmed active exploitation of a zero-day vulnerability, tracked as CVE-2025-53770 in on-prem SharePoint Servers. The IT giant issued emergency patches for SharePoint Subscription Edition and 2019, with 2016 updates pending. Microsoft […]

Pierluigi Paganini July 22, 2025
CrushFTP zero-day actively exploited at least since July 18

Hackers exploit CrushFTP zero-day, tracked as CVE-2025-54309, to gain admin access via HTTPS when DMZ proxy is off. Threat actors are exploiting a zero-day vulnerability, tracked as CVE-2025-54309 (CVSS score of 9.0), in the managed file transfer software CrushFTP to gain administrative privileges on vulnerable servers via HTTPS. CrushFTP warned of a zero-day that has […]

Pierluigi Paganini July 21, 2025
U.S. CISA urges to immediately patch Microsoft SharePoint flaw adding it to its Known Exploited Vulnerabilities catalog

U.S. Cybersecurity and Infrastructure Security Agency (CISA) adds Microsoft SharePoint flaw to its Known Exploited Vulnerabilities catalog. The U.S. Cybersecurity and Infrastructure Security Agency (CISA) added Microsoft SharePoint flaw, tracked as CVE-2025-53770 (“ToolShell”) (CVSS score of 9.8), to its Known Exploited Vulnerabilities (KEV) catalog. This week, Microsoft released emergency SharePoint updates for two zero-day flaws, tracked as CVE-2025-53770 and CVE-2025-53771, […]

Pierluigi Paganini July 21, 2025
Microsoft issues emergency patches for SharePoint zero-days exploited in “ToolShell” attacks

Microsoft patched an exploited SharePoint flaw (CVE-2025-53770) and disclosed a new one, warning of ongoing attacks on on-prem servers. Microsoft released emergency SharePoint updates for two zero-day flaws, tracked as CVE-2025-53770 and CVE-2025-53771, exploited since July 18 in attacks dubbed “ToolShell.” Both vulnerabilities only impact on-premises SharePoint Servers, threat actors could chain them for unauthenticated, […]

Pierluigi Paganini July 21, 2025
SharePoint zero-day CVE-2025-53770 actively exploited in the wild

Microsoft warns of ongoing active exploitation of a SharePoint zero-day vulnerability, tracked as CVE-2025-53770. Microsoft warns of a SharePoint zero-day vulnerability, tracked as CVE-2025-53770 (CVSS score of 9.8), which is under active exploitation. Unfortunately, the flaw has yet to be addressed. The vulnerability is a deserialization of untrusted data in on-premises Microsoft SharePoint Server, an […]