CVE-2026-66033

A flaw was found in libssh2. A pre-authentication integer underflow vulnerability exists in the ssh2ciphercrypt function when negotiating AES-GCM ciphers during the handshake. A malicious SSH server can exploit this to trigger an out-of-bounds read and a memory copy operation with an extremely...

UBUNTU-CVE-2026-66035

libssh2 through 1.11.1, fixed in commit 42e33d8, contains a pre-authentication heap buffer overflow vulnerability that allows a malicious SSH server to corrupt heap metadata in any connecting client by sending a packet with a packetlength smaller than the cipher's block size during Encrypt-then-M...

CVE-2026-60109

Zeek before 8.0.9 contains a null pointer dereference vulnerability in its Kerberos protocol analyzer that allows unauthenticated remote attackers to crash the sensor by sending a crafted KRBERROR message with error-code 25 KDCERRPREAUTHREQUIRED containing a PA-DATA element with padata-type 2, 3,...

CVE-2026-60109

Zeek

CVE-2026-60109 Zeek < 8.0.9 Null Pointer Dereference DoS via Kerberos KRB_ERROR Parsing

Zeek before 8.0.9 contains a null pointer dereference vulnerability in its Kerberos protocol analyzer that allows unauthenticated remote attackers to crash the sensor by sending a crafted KRBERROR message with error-code 25 KDCERRPREAUTHREQUIRED containing a PA-DATA element with padata-type 2, 3,...

CVE-2026-57915

A flaw was found in Apache Kerby. An attacker can bypass the Kerberos pre-authentication check by sending a Pre-Authentication Data PA-DATA packet with an unrecognized or unsupported type. This vulnerability allows an attacker to circumvent the initial authentication step, potentially leading to...

Linux Distros Unpatched Vulnerability : CVE-2026-42189

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Russh is a Rust SSH client & server library. Prior to version 0.60.1, a pre-authentication denial-of- service vulnerability exists in the server's...

CVE-2026-33384

QuickCMS allows a user's session identifier to be set before authentication. The value of this session ID stays the same after authentication. This behaviour enables an attacker to fix a session ID for a victim and later hijack the authenticated session. This issue was fixed in a patch to version...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: ksmbd: Out-of-bounds access has been avoided in the decodepreauthctxt function. It has been confirmed that the address of pnegctxt-HashAlgorithms lies within the boundaries of the SMB request. The deassemblenegcontexts function...

RHEL 9 : dovecot (RHSA-2026:17628)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:17628 advisory. Dovecot is an IMAP server for Linux and other UNIX-like systems, written primarily with security in mind. It also contains a small POP3...

UBUNTU-CVE-2026-6918

In Eclipse Open9J versions 0.21 to 0.58, a pre-authentication remote attacker can crash JITServer by sending a 32-byte crafted TCP message...

Exploit for Missing Authentication for Critical Function in Cpanel

CVE-2026-41940: cPanel/WHM Authentication Bypass Analysis...

Exploit for SQL Injection in Dbgpt Db-Gpt

CVE-2025-51458-exp Pre-Auth SQL Injection in DB-GPThttps:/...

CVE-2026-39337

ChurchCRM is an open-source church management system. Prior to 7.1.0, critical pre-authentication remote code execution vulnerability in ChurchCRM's setup wizard allows unauthenticated attackers to inject arbitrary PHP code during the initial installation process, leading to complete server...

CVE-2026-24352 Session Fixation in PluXml CMS

PluXml CMS allows a user's session identifier to be set before authentication. The value of this session ID stays the same after authentication. This behaviour enables an attacker to fix a session ID for a victim and later hijack the authenticated session. The vendor was notified early about this...

PT-2026-22322

Name of the Vulnerable Software and Affected Versions Johnson Controls Frick Controls Quantum HD versions 10.22 and prior Description A flaw exists in Johnson Controls Frick Controls Quantum HD that allows for code injection. Insufficient input validation in certain parameters may allow for...

Metasploit Wrap-Up 01/23/2026

Oracle E-Business Suite Unauth RCE This week, we are pleased to announce the addition of a module that exploits CVE-2025-61882, a pre-authentication remote code execution vulnerability in Oracle E-Business Suite versions 12.2.3 through 12.2.14. The exploit chains multiple flaws—including SSRF, pa...

CVE-2026-22198

GestSup prior to 3.2.60 (with sources also citing up to 3.2.56 in ENISA EUVD) contains a pre-authentication stored XSS in the API error logging. An unauthenticated attacker can craft the X-API-KEY header (e.g., to /api/v1/ticket.php) to inject HTML/JavaScript into log entries; when an administrat...

EUVD-2023-60391

In the Linux kernel, the following vulnerability has been resolved: ksmbd: avoid out of bounds access in decodepreauthctxt Confirm that the accessed pnegctxt-HashAlgorithms address sits within the SMB request boundary; deassemblenegcontexts only checks that the eight byte smb2negcontext header +...

CVE-2023-54250 ksmbd: avoid out of bounds access in decode_preauth_ctxt()

In the Linux kernel, the following vulnerability has been resolved: ksmbd: avoid out of bounds access in decodepreauthctxt Confirm that the accessed pnegctxt-HashAlgorithms address sits within the SMB request boundary; deassemblenegcontexts only checks that the eight byte smb2negcontext header +...