Actively Exploited
Hackers exploit TrueConf zero-day to push malicious software updates SVE
Hackers have targeted TrueConf conference servers in attacks that exploit a zero-day vulnerability, allowing them to execute arbitrary files on all connected endpoints. The flaw is tracked as CVE-2026-3502 and received a medium severity score. It stems from a missing integrity check in the software’s update mechanism, which can be used to replace the legitimate update with […]
CISA orders feds to patch actively exploited Citrix flaw by Thursday
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) ordered government agencies to patch their Citrix NetScaler appliances against an actively exploited vulnerability by Thursday. Multiple cybersecurity companies flagged the flaw (CVE-2026-3055) as posing an increased risk of exploitation after Citrix released security updates on March 23, noting a technical resemblance to the widely exploited ‘CitrixBleed’ and ‘CitrixBleed2’ security issues. […]
Critical Citrix NetScaler memory flaw actively exploited in attacks
Hackers are exploiting a critical severity vulnerability, tracked as CVE-2026-3055, in Citrix NetScaler ADC and NetScaler Gateway appliances to obtain sensitive data. Citrix initially disclosed CVE-2026-3055 in a security bulletin on March 23, alongside a high-severity race condition flaw tracked as CVE-2026-4368. The issue impacts versions of the two products before 14.1-60.58, versions older than 13.1-62.23, and those older than […]
Hackers exploiting critical F5 BIG-IP flaw in attacks, patch now
Cybersecurity firm F5 Networks has reclassified a BIG-IP APM denial-of-service (DoS) vulnerability as a critical-severity remote code execution (RCE) flaw, warning that attackers are exploiting it to deploy webshells on unpatched devices. BIG-IP APM (short for Access Policy Manager) is a centralized access management proxy solution that enables admins to secure and manage user access […]
Critical Fortinet Forticlient EMS flaw now exploited in attacks
Attackers are now actively exploiting a critical vulnerability in Fortinet’s FortiClient EMS platform, according to threat intelligence company Defused. Tracked as CVE-2026-21643, this SQL injection vulnerability allows unauthenticated threat actors to execute arbitrary code or commands on unpatched systems through low-complexity attacks targeting the FortiClientEMS GUI (web interface) via maliciously crafted HTTP requests. “Fortinet Forticlient EMS […]
CISA: New Langflow flaw actively exploited to hijack AI workflows
The Cybersecurity and Infrastructure Security Agency (CISA) is warning that hackers are actively exploiting a critical vulnerability identified as CVE-2026-33017, which affects the Langflow framework for building AI agents. The security issue received a critical score of 9.3 out of 10 and can be leveraged for remote code execution, allowing threat actors to build public flows without authentication. […]
PolyShell attacks target 56% of all vulnerable Magento stores
Attacks leveraging the ‘PolyShell’ vulnerability in version 2 of Magento Open Source and Adobe Commerce installations are underway, targeting more than half of all vulnerable stores. According to eCommerce security company Sansec, hackers started exploiting the critical PolyShell issue en masse last week, just two days after public disclosure. “Mass exploitation of PolyShell started on March 19th, and […]
CISA orders feds to patch max-severity Cisco flaw by Sunday
The Cybersecurity and Infrastructure Security Agency (CISA) has ordered federal agencies to patch a maximum-severity vulnerability, CVE-2026-20131, in Cisco Secure Firewall Management Center (FMC) by Sunday, March 22. Cisco published a security bulletin about the flaw on March 4, urging system administrators to apply the security updates as soon as possible and warning that no workarounds are available. The […]
Russian hackers exploit Zimbra flaw in Ukrainian govt attacks
Hackers part of APT28, a state-backed threat group linked to Russia’s military intelligence service (GRU), are exploiting a Zimbra Collaboration Suite (ZCS) vulnerability in attacks targeting Ukrainian government entities. This high-severity security flaw (tracked as CVE-2025-66376 and patched in early November) stems from a stored cross-site scripting (XSS) that unauthenticated attackers can exploit to gain remote code execution (RCE) […]
Critical Microsoft SharePoint flaw now exploited in attacks
A critical Microsoft SharePoint vulnerability patched in January is now being exploited in attacks, the Cybersecurity and Infrastructure Security Agency (CISA) warned. Tracked as CVE-2026-20963, this security flaw affects SharePoint Enterprise Server 2016, SharePoint Server 2019, and SharePoint Server Subscription Edition. Successful exploitation enables threat actors without privileges to achieve remote code execution on unpatched servers […]