PT-2026-65701

A pre-authentication error-based SQL injection vulnerability in Koollab LMS allowed an unauthenticated attacker to read sensitive database contents, including personally identifiable information, credentials, and valid JWT tokens that may enable account takeover, via the SCORM report endpoint...

PT-2026-65838

Xlight FTP Server before 3.9.5 contains an information disclosure vulnerability that allows unauthenticated attackers to obtain the server's current GetTickCount value by sending a USER command with a username ending in the :adm suffix. Attackers can trigger the admin protocol path within the...

CVE-2026-67191: Heap-based Buffer Overflow

Xlight FTP Server before 3.9.5 contains a pre-authentication heap buffer overflow vulnerability that allows remote unauthenticated attackers to write past the end of a heap buffer by sending a malformed SSH client identification string. A logic error in the recv loop's termination condition uses ...

EUVD-2026-50085

gotd/td is a T Telegram MTProto API client in Go. Prior to 0.145.1, proto.UnencryptedMessage.Decode in proto/unencryptedmessage.go read attacker controlled dataLen from an unauthenticated MTProto unencrypted packet and allocated makebyte, dataLen before checking the remaining buffer, allowing...

CVE-2026-14512

IBM WebSphere Application Server 9.0, and 8.5 traditional is vulnerable to pre-authentication unsafe deserialization which could allow a remote attacker to bypass authentication or execute arbitrary code...

CVE-2026-14512

IBM WebSphere Application Server 9.0, and 8.5 traditional is vulnerable to pre-authentication unsafe deserialization which could allow a remote attacker to bypass authentication or execute arbitrary code...

CVE-2026-14512 IBM WebSphere Application Server is affected by an unsafe deserialization and exposure of sensitive information

IBM WebSphere Application Server 9.0, and 8.5 traditional is vulnerable to pre-authentication unsafe deserialization which could allow a remote attacker to bypass authentication or execute arbitrary code...

CVE-2026-14512 IBM WebSphere Application Server is affected by an unsafe deserialization and exposure of sensitive information

IBM WebSphere Application Server 9.0, and 8.5 traditional is vulnerable to pre-authentication unsafe deserialization which could allow a remote attacker to bypass authentication or execute arbitrary code...

CVE-2026-14512

CVE-2026-14512 : IBM WebSphere Application Server 9.0 and 8.5 traditional are affected by a pre-authentication unsafe deserialization vulnerability. The root cause is unsafe deserialization that can be triggered without authentication, allowing a remote attacker to bypass authentication and poten...

SUSE CVE-2026-66033

libssh2 through 1.11.1, fixed in commit a2ed82d, contains a pre-authentication integer underflow vulnerability in the ssh2ciphercrypt function in src/openssl.c that allows a malicious SSH server to crash any connecting client by negotiating AES-GCM ciphers during handshake. Attackers can exploit...

CVE-2026-14512: Deserialization of Untrusted Data

IBM WebSphere Application Server 9.0, and 8.5 traditional is vulnerable to pre-authentication unsafe deserialization which could allow a remote attacker to bypass authentication or execute arbitrary code...

PT-2026-65599

Name of the Vulnerable Software and Affected Versions IBM WebSphere Application Server 9.0 IBM WebSphere Application Server 8.5 traditional Description Pre-authentication unsafe deserialization allows a remote attacker to bypass authentication or execute arbitrary code. Unsafe deserialization...

FreeBSD : Erlang/OTP -- megaco flex scanner buffer overflow (445da2cc-89e1-11f1-b35c-4c526214c986)

The version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the 445da2cc-89e1-11f1-b35c-4c526214c986 advisory. https://github.com/erlang/otp/security/advisories/GHSA-7xgh-gmgf-q2g7 reports: A remote unauthenticated...

libssh2: libssh2: Arbitrary code execution via heap buffer overflow during SSH negotiation

A flaw was found in libssh2. A malicious SSH server can exploit a pre-authentication heap buffer overflow vulnerability by sending a specially crafted packet during the Encrypt-then-MAC ETM cipher negotiation. This allows the server to corrupt heap memory, potentially leading to arbitrary code...

libssh2: libssh2: Denial of Service via integer underflow in AES-GCM cipher negotiation

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...

Public Exploit Released for Patched vBulletin Pre-Auth Code Execution Flaw

Public exploit details released on July 27 show how an unauthenticated request can reach PHP's eval function inside vBulletin and execute code on an unpatched forum server. The attack requires no account, administrative access, or interaction from another user. SSD Secure Disclosure lists vBullet...

CVE-2026-66035

A flaw was found in libssh2. A malicious SSH server can exploit a pre-authentication heap buffer overflow vulnerability by sending a specially crafted packet during the Encrypt-then-MAC ETM cipher negotiation. This allows the server to corrupt heap memory, potentially leading to arbitrary code...

Exploit for CVE-2026-42533

CVE-2026-42533 — nginx Heap Buffer Overflow PoC Exploit Pre...

BIT-OPENBAO-2025-59043 OpenBao vulnerable to denial of service via malicious JSON request processing

OpenBao is an open source identity-based secrets management system. In OpenBao versions prior to 2.4.1, JSON objects after decoding may use significantly more memory than their serialized version. It is possible to craft a JSON payload to maximize the factor between serialized memory usage and...

Erlang/OTP -- megaco flex scanner buffer overflow

https://github.com/erlang/otp/security/advisories/GHSA-7xgh-gmgf-q2g7 reports: A remote unauthenticated attacker can crash Erlang nodes running the megaco text codec with the flex scanner option by sending an H.248/Megaco message with a property parm name exceeding 452 bytes. The overflow occurs ...