CVE-2026-120596

A remotely exploitable denial-of-service vulnerability exists in the TCP options parser of the Nut/Net TCP/IP stack included in Nut/OS, developed by Ethernut/Egnite. Nut/OS releases up to version 5.1 are affected. An unauthenticated attacker can send a single TCP segment containing an unknown TCP...

CVE-2026-120596 CVE-2026-120596

A remotely exploitable denial-of-service vulnerability exists in the TCP options parser of the Nut/Net TCP/IP stack included in Nut/OS, developed by Ethernut/Egnite. Nut/OS releases up to version 5.1 are affected. An unauthenticated attacker can send a single TCP segment containing an unknown TCP...

CVE-2026-120596

A remotely exploitable denial-of-service (DoS) vulnerability exists in the Nut/Net TCP/IP stack within Nut/OS (developed by Ethernut/Egnite), affecting releases up to version 5.1 . An unauthenticated attacker can send a single TCP segment containing an unknown TCP option with a length byte of zer...

EUVD-2026-115333

A remotely exploitable denial-of-service vulnerability exists in the TCP options parser of the Nut/Net TCP/IP stack included in Nut/OS, developed by Ethernut/Egnite. Nut/OS releases up to version 5.1 are affected. An unauthenticated attacker can send a single TCP segment containing an unknown TCP...

CVE-2026-120596 CVE-2026-120596

A remotely exploitable denial-of-service vulnerability exists in the TCP options parser of the Nut/Net TCP/IP stack included in Nut/OS, developed by Ethernut/Egnite. Nut/OS releases up to version 5.1 are affected. An unauthenticated attacker can send a single TCP segment containing an unknown TCP...

CVE-2026-120596: Ethernut / egnite GmbH Nut/Net TCP/IP Stack: A remotely exploitable denial-of-service vulnerability exists in the TCP options parser of the Nut/Net TCP/IP stack…

A remotely exploitable denial-of-service vulnerability exists in the TCP options parser of the Nut/Net TCP/IP stack included in Nut/OS, developed by Ethernut/Egnite. Nut/OS releases up to version 5.1 are affected. An unauthenticated attacker can send a single TCP segment containing an unknown TCP...

PT-2026-135540

A remotely exploitable denial-of-service vulnerability exists in the TCP options parser of the Nut/Net TCP/IP stack included in Nut/OS, developed by Ethernut/Egnite. Nut/OS releases up to version 5.1 are affected. An unauthenticated attacker can send a single TCP segment containing an unknown TCP...

CVE-2026-73261

A flaw was found in Mongoose. This vulnerability allows an unauthenticated remote attacker to cause a Denial of Service DoS by sending network packets with malformed TCP options. Due to improper length validation in the built-in TCP/IP stack, these crafted packets corrupt connection settings,...

Astra Linux – Vulnerability in Linux

In the Linux kernel, the following vulnerability has been resolved: netfilter: synproxy: Fixed an out-of-bounds condition during the parsing of TCP options. The TCP option parser in synproxy（synproxyparseoptions）could read one byte out of bounds. When the length is 1, the execution flow enters a...

Astra Linux – Vulnerability in Linux

In the Linux kernel, the following vulnerability has been resolved: schcake: A out-of-bounds access issue was fixed during the parsing of TCP options and headers. The TCP option parser in cake qdisc cakegettcpopt and caketcphmaydrop could read one byte out of bounds. When the length of the data...

CVE-2026-97417

A flaw was found in the Linux kernel's netfilter connection tracking subsystem. The TCP option processing mechanism improperly assumes memory alignment when reading packet headers. A remote attacker could exploit this vulnerability by sending crafted TCP packets with misaligned SACK options throu...

CVE-2026-16931

IBM i 7.6, 7.5, 7.4, and 7.3 could allow a remote attacker to cause a denial of service due to improper handling of zero-length TCP options...

EUVD-2026-57376

IBM i 7.6, 7.5, 7.4, and 7.3 could allow a remote attacker to cause a denial of service due to improper handling of zero-length TCP options...

CVE-2026-16931

CVE-2026-16931 affects IBM i releases 7.6, 7.5, 7.4 and 7.3. A remote attacker could cause a denial of service through improper handling of zero-length TCP options. The vulnerability has a CVSS v3.1 base score of 7.5 (NETWORK, HIGH impact on availability; no impact on confidentiality/integrity). ...

CVE-2026-16931 IBM i is Affected By A Denial of Service Vulnerability []

IBM i 7.6, 7.5, 7.4, and 7.3 could allow a remote attacker to cause a denial of service due to improper handling of zero-length TCP options...

CVE-2026-16931 IBM i is Affected By A Denial of Service Vulnerability []

IBM i 7.6, 7.5, 7.4, and 7.3 could allow a remote attacker to cause a denial of service due to improper handling of zero-length TCP options...

CVE-2026-16931: Loop with Unreachable Exit Condition

IBM i 7.6, 7.5, 7.4, and 7.3 could allow a remote attacker to cause a denial of service due to improper handling of zero-length TCP options...

PT-2026-71184

IBM i 7.6, 7.5, 7.4, and 7.3 could allow a remote attacker to cause a denial of service due to improper handling of zero-length TCP options...

Security Bulletin: IBM i is Affected By A Denial of Service Vulnerability [CVE-2026-16931]

Summary IBM i is vulnerable to a denial of service due to improper handling of TCP options CVE-2026-16931 as described in the vulnerability details section. Vulnerability Details CVEID:CVE-2026-16931 DESCRIPTION: IBM i could allow a remote attacker to cause a denial of service due to improper...

CVE-2026-68119

In the Linux kernel, the following vulnerability has been resolved: tcp: initialize standalone TCP-AO response padding tcpv4sendack and tcpv6sendresponse construct standalone TCP responses with TCP-AO options. The option length carries the actual MAC length, but the TCP header length includes the...