Actively Exploited
Hackers exploit Collabora RCE flaw to backdoor Nextcloud servers
Threat actors are exploiting a critical command execution flaw, now tracked as CVE-2026-110447, in the Collabora Online – Built-in CODE Server app (richdocumentscode) for Nextcloud. Multiple administrator reports indicate that attacks began in mid-September, roughly a month before the formal security bulletin, the GitHub advisory, and CVE publication. CVE-2026-110447 impacts richdocumentscode versions before 26.4.303 and […]
Palo Alto Networks warns of PAN-OS RCE flaw exploited in attacks
Palo Alto Networks has released security updates for a high-severity PAN-OS RCE zero-day, tracked as CVE-2026-0322, that has been exploited in attacks targeting firewalls. The vulnerability affects the PAN-OS management interface and lets authenticated attackers with network access execute code as root on vulnerable devices. Palo Alto Networks confirmed in a security advisory published Wednesday […]
Cisco patches new Secure Email Gateway zero-day exploited in attacks
Cisco has patched another actively exploited zero-day flaw in its Secure Email Gateway (SEG) that lets remote unauthenticated attackers execute commands with root privileges. Tracked as CVE-2026-76519, this vulnerability stems from a relative path traversal weakness in SEG’s Advanced Malware Protection (AMP) feature, caused by improper handling of email attachments. Threat actors can exploit this issue […]
CISA warns admins to immediately fix Ivanti flaw exploited as zero-day
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) urged security teams to immediately patch an Ivanti Connect Secure (ICS) flaw exploited in zero-day attacks since at least October 1st. Tracked as CVE-2026-104935, this high-severity authentication bypass vulnerability lets remote threat actors without privileges execute arbitrary commands on targeted ICS systems in low-complexity attacks that don’t […]
Unpatched AhsayCBS flaws exploited to deploy webshells, mine crypto
Threat actors are exploiting one critical and one medium-severity vulnerability still unpatched in the AhsayCBS backup management platform to deploy webshells and cryptocurrency miners. AhsayCBS is typically used by managed service providers (MSPs) and system integrators. The malicious activity was observed on October 7, and targeted at least five organizations. The two security issues exploited […]
Max severity SonicWall SMA1000 flaw now exploited in attacks
Attackers are exploiting a maximum-severity vulnerability in SonicWall SMA1000 appliances (CVE-2026-102255) that was patched on Tuesday, three days ago. Tracked as CVE-2026-102255, the flaw affects the Appliance WorkPlace interface on SMA1000 6210, 7210, and 8200v models, but does not affect the SMA 100 Series product line or SSL-VPN running on SonicWall firewalls. “By abusing this […]
Hackers exploit critical Atlassian flaw after public PoC release
A critical vulnerability (CVE-2026-21589) affecting multiple Atlassian product families, including Jira, Confluence, and Bitbucket, is being exploited in attacks that do not require authentication. Earlier today, security company Previdian detected the activity on its honeypot network, just hours after a detailed technical report was published. An unauthenticated attacker can exploit CVE-2026-21589 to access specific files […]
Ninja Forms plugin flaw exploited to hack WordPress sites
Hackers are exploiting stored cross-site scripting (XSS) vulnerabilities in two unrelated WordPress plugins, Ninja Forms and WPC Product Bundles for WooCommerce, to install backdoors and create rogue admin accounts. Both vulnerabilities received a high severity score and require an authenticated session to exploit. They are tracked as CVE-2026-93836, affecting WPC Product Bundles for WooCommerce versions 8.6.6 […]
Citrix patches NetScaler SAML zero-day exploited in attacks
Citrix has released emergency updates for a new NetScaler denial-of-service vulnerability tracked as CVE-2026-88779 that has been exploited in zero-day attacks, with researchers investigating whether it can also be exploited for remote code execution. The vulnerability is a memory buffer flaw affecting NetScaler ADC and NetScaler Gateway appliances using SAML authentication with Gateway or AAA […]
Fortinet warns of critical FortiMail flaw exploited in zero-day attacks
Fortinet is warning customers of a critical FortiMail vulnerability, tracked as CVE-2026-104286, that is being actively exploited in zero-day attacks to execute unauthorized code or commands on vulnerable devices. The vulnerability is rated critical, with a CVSS score of 9.8, and affects the FortiMail management interface. “An Improper Limitation of a Pathname to a Restricted […]