CVE-2026-11976

MonsterInsights Pro updates 10.2.0 and 10.2.2 were distributed from the official update bucket and contain a malicious file, class-system-check.php, due to a compromised AWS S3 bucket. Three distinct variants were observed on 2026-06-11, all using the same AES-256-GCM key, indicating a single thr...

CVE-2026-17578

Kong Event Gateway versions 1.0.0 through 1.1.1 and 1.2.0 do not enforce key rotation before reaching NIST SP 800-38D recommended usage limit for AES-GCM encryption keys with random nonces when the AWS IAM encryption feature is enabled. If a producer sends messages at a sustained high rate withou...

CVE-2026-17578 Kong Event Gateway AES-GCM nonce reuse due to missing key rotation enforcement

Kong Event Gateway versions 1.0.0 through 1.1.1 and 1.2.0 do not enforce key rotation before reaching NIST SP 800-38D recommended usage limit for AES-GCM encryption keys with random nonces when the AWS IAM encryption feature is enabled. If a producer sends messages at a sustained high rate withou...

Improper Validation of Integrity Check Value

Overview org.bouncycastle:bcprov-ext-jdk14 is a Java implementation of cryptographic algorithms. Affected versions of this package are vulnerable to Improper Validation of Integrity Check Value that leads to information exposure in the processPacket method of CCMBlockCipher, with equivalent paths...

Improper Validation of Integrity Check Value

Overview Affected versions of this package are vulnerable to Improper Validation of Integrity Check Value that leads to information exposure in the processPacket method of CCMBlockCipher, with equivalent paths in KCCMBlockCipher and KGCMBlockCipher, which decrypt directly into the caller's output...

CVE-2026-67192 Xlight FTP Server < 3.9.5 Pre-Auth Stack Buffer Overflow via SSH GCM Cipher

Xlight FTP Server before 3.9.5 contains a pre-authentication stack buffer overflow vulnerability that allows unauthenticated attackers to corrupt stack memory by sending malformed SSH packets when a GCM cipher is negotiated. Attackers can craft packets with an unvalidated length field passed...

CVE-2026-67192

Xlight FTP Server prior to 3.9.5 is affected by a pre-authentication stack-based buffer overflow when a GCM SSH cipher is negotiated. An unauthenticated attacker can craft malformed SSH packets with an unvalidated length field that is passed directly to the GCM decrypt function, potentially overw...

SUSE SLES12 Security Update : libssh (SUSE-SU-2026:3302-1)

The remote SUSE Linux SLES12 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:3302-1 advisory. This update for libssh fixes the following issues - CVE-2026-3731: denial of service via out-of-bounds read in SFTP extension name handler...

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...

Security update for libssh

This update for libssh fixes the following issues: CVE-2026-59843: denial of service via zero advertised channel packet size bsc1272164. CVE-2026-59844: denial of service via oversized SFTP read length bsc1272165. CVE-2026-59845: denial of service via unchecked ProxyCommand fork failure bsc127216...

SUSE-SU-2026:3330-1 Security update for libssh

This update for libssh fixes the following issues: - CVE-2026-59843: denial of service via zero advertised channel packet size bsc1272164. - CVE-2026-59844: denial of service via oversized SFTP read length bsc1272165. - CVE-2026-59845: denial of service via unchecked ProxyCommand fork failure...

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...

Security update for libssh

This update for libssh fixes the following issues: CVE-2026-3731: denial of service via out-of-bounds read in SFTP extension name handler bsc1259377. CVE-2026-59843: denial of service via zero advertised channel packet size bsc1272164. CVE-2026-59844: denial of service via oversized SFTP read...

libssh2 Integer Underflow DoS via AES-GCM Cipher Negotiation

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Linux Distros Unpatched Vulnerability : CVE-2026-66033

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - libssh2 through 1.11.1, fixed in commit a2ed82d, contains a pre-authentication integer underflow vulnerability in the ssh2ciphercrypt function in src/openssl.c...

DEBIAN-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...

UBUNTU-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...

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...