CVE-2026-66033 libssh2 Integer Underflow DoS via AES-GCM Cipher Negotiation

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-2026-66033

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-2026-66033

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...

EUVD-2026-48720

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...

PT-2026-64382

Name of the Vulnerable Software and Affected Versions libssh2 versions prior to 1.11.1 Description A pre-authentication heap buffer overflow occurs during Encrypt-then-MAC ETM cipher negotiation. A malicious SSH server can corrupt heap metadata in a connecting client by sending a packet where the...

PT-2026-64380

Name of the Vulnerable Software and Affected Versions libssh2 versions prior to 1.11.1 Description A pre-authentication integer underflow exists in the ssh2 cipher crypt function within src/openssl.c. A malicious SSH server can trigger this issue during the handshake by negotiating AES-GCM cipher...

openssh: Fix of CVE-2026-60000

CVE-2026-60000: fix GSSAPI pre-authentication denial of service where inputgssapierrtok did not finish the postponed authentication attempt, so failed GSSAPI requests were never counted against MaxAuthTries...

CVE-2026-16606 Unauthenticated remote code execution (pre-auth RCE) vulnerability in openFT for Linux and Oracle Solaris

A vulnerability in Fujitsu Software Linux openFT and Fujitsu Software Oracle Solaris openFT before version 12.1D00 allows for unauthenticated remote code execution pre-auth RCE on GNU/Linux or Oracle Solaris. The Fsas Technologies PSIRT obtained that intelligence internally and covers the CVE...

Exploit for CVE-2026-60137

How does this work at all !plotd...

Critical ServiceNow AI Platform Flaw Exploited for Unauthenticated Code Execution

Threat actors are now exploiting a recently disclosed critical security flaw impacting ServiceNow AI Platform, according to Defused Cyber. In a post shared on X, the threat intelligence firm said it's observing in-the-wild exploitation of CVE-2026-6875 CVSS score: 9.5, a sandbox escape...

Updated libssh2 packages fix security vulnerabilities

The updated packages fix security vulnerabilities: Heap Buffer Over-read via sftpsymlink in sftp.c. CVE-2025-15661 libssh2 userauth.c userauthpassword integer overflow. CVE-2026-7598 Pre-Authentication DoS via SSHMSGEXTINFO Handler. CVE-2026-55199 Out-of-Bounds Write via Unchecked packetlength in...

MGASA-2026-0273 Updated libssh2 packages fix security vulnerabilities

The updated packages fix security vulnerabilities: Heap Buffer Over-read via sftpsymlink in sftp.c. CVE-2025-15661 libssh2 userauth.c userauthpassword integer overflow. CVE-2026-7598 Pre-Authentication DoS via SSHMSGEXTINFO Handler. CVE-2026-55199 Out-of-Bounds Write via Unchecked packetlength in...

CVE-2026-41252

xrdp is an open source RDP server. Versions 0.10.6 and prior contain a missing bounds check in xrdp, which allows a heap-based buffer overflow when operating in vnc-any mode. The issue occurs during the handling of RFB protocol color map messages from a VNC server, where incoming color indices ar...

CVE-2026-41252

xrdp is an open source RDP server. Versions 0.10.6 and prior contain a missing bounds check in xrdp, which allows a heap-based buffer overflow when operating in vnc-any mode. The issue occurs during the handling of RFB protocol color map messages from a VNC server, where incoming color indices ar...

CVE-2026-15588 Gdbusserver: glib2: gdbusserver pre-authentication dos via unbounded sasl line buffering

A denial-of-service and resource exhaustion vulnerability exists within the GDBus component of GLib. The gdbusauth authentication mechanism fails to enforce proper length limitations on data lines read from a client. An unauthenticated local or remote attacker can exploit this lack of input...

CVE-2026-15588

CVE-2026-15588 affects GLib’s GDBus component. The gdbusauth mechanism fails to enforce length limits on data lines read from a client, enabling an unauthenticated attacker to trigger DoS and resource exhaustion by sending extremely long data streams. This can cause excessive memory and CPU consu...

CVE-2026-64620

FreeRDP before 3.28.0 affected outlength, so out-of-bounds bytes are written before the bounds check. On the server side, when a client selects RDP Standard Security, the encrypted client random is decrypted into a fixed 32-byte buffer. Because the server publishes its RSA public key, an...

CVE-2026-64620 FreeRDP before 3.28.0 Heap Buffer Overflow via crypto_rsa_common

FreeRDP before 3.28.0 affected outlength, so out-of-bounds bytes are written before the bounds check. On the server side, when a client selects RDP Standard Security, the encrypted client random is decrypted into a fixed 32-byte buffer. Because the server publishes its RSA public key, an...

CVE-2026-64620

FreeRDP before 3.28.0 affected outlength, so out-of-bounds bytes are written before the bounds check. On the server side, when a client selects RDP Standard Security, the encrypted client random is decrypted into a fixed 32-byte buffer. Because the server publishes its RSA public key, an...

EUVD-2026-45935

FreeRDP before 3.28.0 affected outlength, so out-of-bounds bytes are written before the bounds check. On the server side, when a client selects RDP Standard Security, the encrypted client random is decrypted into a fixed 32-byte buffer. Because the server publishes its RSA public key, an...