EUVD-2026-55565

In the Linux kernel, the following vulnerability has been resolved: tcp: fix TIMEWAIT socket reference leak on PSP policy failure Release the TIMEWAIT socket reference and jump to discardit upon PSP policy failure in both IPv4 and IPv6 receive paths. This prevents a memory leak of tcptwbucket...

CVE-2026-68379

The CVE pertains to the Linux kernel and describes a fix for a TIME_WAIT socket reference leak caused by PSP policy failure in both IPv4 and IPv6 receive paths. The underlying issue was that TIME_WAIT socket references were not released correctly when PSP policy checks failed, leading to memory l...

UBUNTU-CVE-2026-64518

In the Linux kernel, the following vulnerability has been resolved: tcp: Fix out-of-bounds access for twsk in tcpaoestablishedkey. lockdepsockisheld was added in tcpaoestablishedkey by the cited commit. It can be called from tcpv46timewaitack with twsk. Since it does not have sk-sklock, the lockd...

CVE-2026-64518

In the Linux kernel, the following vulnerability has been resolved: tcp: Fix out-of-bounds access for twsk in tcpaoestablishedkey. lockdepsockisheld was added in tcpaoestablishedkey by the cited commit. It can be called from tcpv46timewaitack with twsk. Since it does not have sk-sklock, the lockd...

CVE-2026-64518

In the Linux kernel, the following vulnerability has been resolved: tcp: Fix out-of-bounds access for twsk in tcpaoestablishedkey. lockdepsockisheld was added in tcpaoestablishedkey by the cited commit. It can be called from tcpv46timewaitack with twsk. Since it does not have sk-sklock, the lockd...

EUVD-2026-48862

In the Linux kernel, the following vulnerability has been resolved: tcp: Fix out-of-bounds access for twsk in tcpaoestablishedkey. lockdepsockisheld was added in tcpaoestablishedkey by the cited commit. It can be called from tcpv46timewaitack with twsk. Since it does not have sk-sklock, the lockd...

CVE-2026-64518

CVE-2026-64518 affects the Linux kernel TCP stack. Affected component is tcp_ao_established_key(), where an out-of-bounds access can occur due to the added lockdep_sock_is_held() annotation. The issue can be triggered from tcp_v46_timewait_ack() while handling a twsk, because the code path lacks ...

CVE-2026-64518 tcp: Fix out-of-bounds access for twsk in tcp_ao_established_key().

In the Linux kernel, the following vulnerability has been resolved: tcp: Fix out-of-bounds access for twsk in tcpaoestablishedkey. lockdepsockisheld was added in tcpaoestablishedkey by the cited commit. It can be called from tcpv46timewaitack with twsk. Since it does not have sk-sklock, the lockd...

CVE-2026-64518 tcp: Fix out-of-bounds access for twsk in tcp_ao_established_key().

In the Linux kernel, the following vulnerability has been resolved: tcp: Fix out-of-bounds access for twsk in tcpaoestablishedkey. lockdepsockisheld was added in tcpaoestablishedkey by the cited commit. It can be called from tcpv46timewaitack with twsk. Since it does not have sk-sklock, the lockd...

EUVD-2026-45597

In the Linux kernel, the following vulnerability has been resolved: tcp: fix stale per-CPU tcptwisn leak enabling ISN prediction Blamed commit moved the TIMEWAIT-derived ISN from the skb control block to a per-CPU variable, assuming the value would always be consumed by tcpconnrequest for the sam...

CVE-2026-64024

In the Linux kernel, the following vulnerability has been resolved: tcp: fix stale per-CPU tcptwisn leak enabling ISN prediction Blamed commit moved the TIMEWAIT-derived ISN from the skb control block to a per-CPU variable, assuming the value would always be consumed by tcpconnrequest for the sam...

CVE-2026-64024

CVE-2026-64024 concerns a Linux kernel issue where a per-CPU tcp_tw_isn leak could enable ISN prediction. The root cause was that TIME_WAIT-derived ISNs were stored in a per-CPU variable and could be consumed by a subsequent SYN if a packet was dropped along several paths (e.g., min_ttl/min_hop, ...

PT-2026-61341

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A flaw exists in the TCP implementation where a stale per-CPU tcp tw isn variable can leak, enabling Initial Sequence Number ISN prediction. The issue occurs because the system assumes t...

Siemens SIMATIC Devices Use After Free (CVE-2024-36904)

In the Linux kernel, the following vulnerability has been resolved: tcp: Use refcountincnotzero in tcptwskunique. This plugin only works with Tenable.ot. Please visit https://www.tenable.com/products/tenable-ot for more information. %NASLMINLEVEL 80900 C Tenable, Inc. include'compat.inc'; if...

Overcoming TCP/IP Connection Limits with PgBouncer and PostgreSQL on Windows

Challenge When running PgBouncer and PostgreSQL on Windows, especially under high-load scenarios with frequent connect/disconnect cycles, you may encounter exhaustion of available TCP ports. This is due to many connections ending up in the TIMEWAIT state, preventing immediate reuse of those ports...

Linux Distros Unpatched Vulnerability : CVE-2025-37894

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - In the Linux kernel, the following vulnerability has been resolved: net: use sockgenput when skstate is TCPTIMEWAIT It is possible for a pointer of type struct...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerabilities have been resolved: net: Use sockgenput when skstate is TCPTIMEWAIT. It is possible for a pointer of type struct inettimewaitsock to be returned from the functions inetlookupestablished and inet6lookupestablished. This can cause a crash when the...

DEBIAN-CVE-2025-37894

In the Linux kernel, the following vulnerability has been resolved: net: use sockgenput when skstate is TCPTIMEWAIT It is possible for a pointer of type struct inettimewaitsock to be returned from the functions inetlookupestablished and inet6lookupestablished. This can cause a crash when the...

UBUNTU-CVE-2025-37894

In the Linux kernel, the following vulnerability has been resolved: net: use sockgenput when skstate is TCPTIMEWAIT It is possible for a pointer of type struct inettimewaitsock to be returned from the functions inetlookupestablished and inet6lookupestablished. This can cause a crash when the...

Linux kernel 安全漏洞

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in the Linux kernel that stems from improper socket release in the TCPTIMEWAIT state, which could lead to a crash...