Unity Linux 20.1060a / 20.1070a Security Update: kernel (UTSA-2026-013582)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-013582 advisory. In the Linux kernel, the following vulnerability has been resolved: net: stream: purge skerrorqueue in skstreamkillqueues Changheon Lee reported TCP socket leaks, wi...

Unity Linux 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-010727)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-010727 advisory. The Linux kernel before 5.17.9 allows TCP servers to identify clients by observing what source ports are used. This occurs because of use of Algorithm 4 Double-Hash...

Nest Affected by DoS via Recursive handleData in JsonSocket (TCP Transport)

Impact Attacker sends many small, valid JSON messages in one TCP frame → handleData recurses once per message; buffer shrinks each call → maxBufferSize is never reached; call stack overflows instead → A 47 KB payload is sufficient to trigger RangeError Patches Fixed in @nestjs/[email protected]....

PT-2026-32886

Name of the Vulnerable Software and Affected Versions Microsoft Windows 10 versions 10.0.14393.0 through 10.0.14393.9059 Microsoft Windows 10 affected versions not specified Microsoft Windows 11 affected versions not specified Microsoft Windows Server 2019 affected versions not specified Microsof...

PT-2026-51972

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the BPF sock ops program when accessing ctx fields where the destination register dst reg is the same as the source register src reg. In the !fullsock or !locked tcp...

CVE-2026-39863

Kamailio is an open source implementation of a SIP Signaling Server. Prior to 6.1.1, 6.0.6, and 5.8.8, an out-of-bounds access in the core of Kamailio formerly OpenSER and SER allows remote attackers to cause a denial of service process crash via a specially crafted data packet sent over TCP. The...

DEBIAN-CVE-2026-39863

Kamailio is an open source implementation of a SIP Signaling Server. Prior to 6.1.1, 6.0.6, and 5.8.8, an out-of-bounds access in the core of Kamailio formerly OpenSER and SER allows remote attackers to cause a denial of service process crash via a specially crafted data packet sent over TCP. The...

EUVD-2026-20616

Kamailio is an open source implementation of a SIP Signaling Server. Prior to 6.1.1, 6.0.6, and 5.8.8, an out-of-bounds access in the core of Kamailio formerly OpenSER and SER allows remote attackers to cause a denial of service process crash via a specially crafted data packet sent over TCP. The...

CVE-2026-39863

Kamailio is an open source implementation of a SIP Signaling Server. Prior to 6.1.1, 6.0.6, and 5.8.8, an out-of-bounds access in the core of Kamailio formerly OpenSER and SER allows remote attackers to cause a denial of service process crash via a specially crafted data packet sent over TCP. The...

CVE-2026-35406

Aardvark-dns is an authoritative dns server for A/AAAA container records. From 1.16.0 to 1.17.0, a truncated TCP DNS query followed by a connection reset causes aardvark-dns to enter an unrecoverable infinite error loop at 100% CPU. This vulnerability is fixed in 1.17.1...

GHSA-HFPQ-X728-986J netavark has incorrect error handling for malformed tcp packets

Impact A truncated TCP DNS query followed by a connection reset causes aardvark-dns to enter an unrecoverable infinite error loop at 100% CPU. Patches https://github.com/containers/aardvark-dns/commit/3b49ea7b38bdea134b7f03256f2e13f44ce73bb1 Workarounds None Credits Thanks to @dkane01 for reporti...

CVE-2026-5590

A race condition during TCP connection teardown can cause tcprecv to operate on a connection that has already been released. If tcpconnsearch returns NULL while processing a SYN packet, a NULL pointer derived from stale context data is passed to tcpbacklogisfull and dereferenced without validatio...

CVE-2026-5590 net: ip/tcp: Null pointer dereference can be triggered by a race condition

A race condition during TCP connection teardown can cause tcprecv to operate on a connection that has already been released. If tcpconnsearch returns NULL while processing a SYN packet, a NULL pointer derived from stale context data is passed to tcpbacklogisfull and dereferenced without validatio...

SUSE CVE-2026-23457

In the Linux kernel, the following vulnerability has been resolved: netfilter: nfconntracksip: fix Content-Length u32 truncation in siphelptcp siphelptcp parses the SIP Content-Length header with simplestrtoul, which returns unsigned long, but stores the result in unsigned int clen. On 64-bit...

EUVD-2026-18714

In the Linux kernel, the following vulnerability has been resolved: netfilter: nfconntracksip: fix Content-Length u32 truncation in siphelptcp siphelptcp parses the SIP Content-Length header with simplestrtoul, which returns unsigned long, but stores the result in unsigned int clen. On 64-bit...

CLSA-2026-1775224807 Fix of 95 CVEs

CVE-2025-39683 - tracing: Remove unneeded goto out logic CVE-2025-39683 - tracing: Limit access to parser-buffer when tracegetuser failed CVE-2025-39683 CVE-2025-38079 - crypto: algifhash - fix double free in hashaccept CVE-2025-38079 CVE-2025-38159 - wifi: rtw88: fix the 'para' buffer size to...

HTTP Fetch, Hidden Bind Ipknock TCP Stager

Fetch and execute an x86 payload from an HTTP server. Listen for a connection. First, the port will need to be knocked from the IP defined in KHOST. This IP will work as an authentication method you can spoof it with tools like hping. After that you could get your shellcode from any IP. The socke...

HTTP Fetch, Windows x86 Pingback, Bind TCP Inline

Fetch and execute an x86 payload from an HTTP server. Open a socket and report UUID when a connection is received Windows x86 Module Options msf use payload/cmd/windows/http/x86/pingbackbindtcp msf payloadpingbackbindtcp show actions ...actions... msf payloadpingbackbindtcp set ACTION msf...

HTTP Fetch, Windows Meterpreter Shell, Reverse TCP Inline (IPv6)

Fetch and execute an x86 payload from an HTTP server. Connect back to attacker and spawn a Meterpreter shell. Requires Windows XP SP2 or newer. Module Options msf use payload/cmd/windows/http/x86/meterpreterreverseipv6tcp msf payloadmeterpreterreverseipv6tcp show actions ...actions... msf...

FreeBSD Security Advisory - FreeBSD-SA-26:06.tcp

FreeBSD Security Advisory - When a challenge ACK is to be sent tcprespond constructs and sends the challenge ACK and consumes the mbuf that is passed in. When no challenge ACK should be sent the function returns and leaks the mbuf...