CVE-2026-43634

CVE-2026-43634 affects HestiaCP versions 1.2.0–1.9.4. The vulnerability is an IP spoofing flaw: unauthenticated attackers can send arbitrary IPs via the CF-Connecting-IP header, bypassing authentication controls and Cloudflare network verification. This can defeat fail2ban brute-force protections...

New Dohdoor malware campaign targets education and health care

Cisco Talos discovered an ongoing malicious campaign since at least as early as December 2025 by a threat actor we track as "UAT-10027," delivering a previously undisclosed backdoor dubbed "Dohdoor." Dohdoor utilizes the DNS-over-HTTPS DoH technique for command-and-control C2 communications and h...

UBUNTU-CVE-2021-3761

Any CA issuer in the RPKI can trick OctoRPKI prior to 1.3.0 into emitting an invalid VRP "MaxLength" value, causing RTR sessions to terminate. An attacker can use this to disable RPKI Origin Validation in a victim network for example AS 13335 - Cloudflare prior to launching a BGP hijack which...

Paragon Initiative Enterprises: Directory Disclose,Email Disclose Zendmail vulnerability

i found three vulnerability Directory information disclose,Email address disclose, and possible Remote code execution in Zendmail during signup your code accept username with ',",/,@ while all of the special character must be forbidden or encoded in username Directory Disclose: 1. goto sign-up pa...