Secure Bulletin Navigating the cyber sea with knowledge
Home > Tag > Active Exploitation
#Active Exploitation

Old Synology NAS Flaws Resurface as C3RB3R Ransomware Locks Up Home and Business Storage

3 November 2026  |  dark6  |  Ransomware

Security researchers say a ransomware strain tracked as C3RB3R is encrypting files on Synology network storage devices by exploiting vulnerabilities the vendor patched back in 2024. Synology is...

>> read more

From Exposed Firewall to Active Directory: Inside a 25-Server Root Compromise Chain

30 October 2026  |  dark6  |  Cybercrime

Security researchers at Dream say an attacker combined two PHP2Shell firewall bugs with a Linux kernel privilege-escalation flaw to seize root on 25 systems across four countries, including...

>> read more

Attackers Are Actively Hijacking Unpatched Citrix NetScaler Appliances to Plant Web Shells

25 October 2026  |  dark6  |  Vulnerability

Security researchers have documented a live exploitation campaign against a critical, already-disclosed Citrix NetScaler flaw, using a clever log-poisoning technique to achieve remote code execution, install web shells,...

>> read more

Actively Exploited Collabora RCE Leaves Nextcloud Servers Backdoored

19 October 2026  |  dark6  |  Vulnerability

Attackers are exploiting CVE-2026-110447, a critical unauthenticated command-injection flaw in the Collabora Online Built-in CODE Server app for Nextcloud. Administrators must upgrade to richdocumentscode 26.4.303 or later and...

>> read more

Plex2Shell Attacks Turn Exposed Media Servers Into Cryptomining Nodes

19 October 2026  |  dark6  |  Vulnerability

Attackers are using the public Plex2Shell exploit chain against internet-facing Plex Media Server instances to install an XMRig miner and proxy software. Administrators should update immediately and inspect...

>> read more

Palo Alto PAN-OS Zero-Day Exploited to Run Code as Root

15 October 2026  |  dark6  |  Vulnerability

Palo Alto Networks says attackers have begun exploiting CVE-2026-0322, a PAN-OS management-interface flaw that enables root-level code execution. Administrators should install a fixed release immediately and investigate access...

>> read more

Cisco Email Gateway Zero-Day Gives Attackers Root Access

15 October 2026  |  dark6  |  Vulnerability

Cisco has confirmed active exploitation of CVE-2026-76519, a critical Secure Email Gateway flaw triggered by crafted attachments. A corrected Content Scanner Tools package is available, but organizations must...

>> read more

Actively Exploited FortiMail Zero-Day Lets Attackers Write Files Without Login

2 October 2026  |  dark6  |  Vulnerability

Fortinet says attackers are exploiting a critical FortiMail flaw that permits unauthenticated file writes through crafted web requests. With patches still pending for several branches at disclosure, administrators...

>> read more