CVE-2023-42326

pfSense 2.7.0 Exploit de Inyección de Comandos CVE-2023-42326 Este script de Python es una Prueba de Concepto PoC para la vulnerabilidad de inyección de comandos CVE-2023-42326 en pfSense 2.7.0. La vulnerabilidad permite a atacantes autenticados inyectar y ejecutar comandos arbitrarios a través d...

CVE-2026-74478

A flaw was found in the Linux kernel. A remote attacker, by sending specially crafted packets over GRE or L2TPv3 transports, could trigger a use-after-free vulnerability. This occurs in the vectormmsgrx function when a packet's overlay header fails verification, causing the system to attempt to...

SUSE CVE-2026-74478

In the Linux kernel, the following vulnerability has been resolved: um: vector: fix use-after-free in vectormmsgrx When vectormmsgrx discards a packet whose overlay header fails verifyheader, it frees the skb and continues the loop: if headercheck estats.rxencapserrors++; continue; The normal and...

CVE-2026-74478

In the Linux kernel, the following vulnerability has been resolved: um: vector: fix use-after-free in vectormmsgrx When vectormmsgrx discards a packet whose overlay header fails verifyheader, it frees the skb and continues the loop: if headercheck estats.rxencapserrors++; continue; The normal and...

CVE-2026-74478

In the Linux kernel, the following vulnerability has been resolved: um: vector: fix use-after-free in vectormmsgrx When vectormmsgrx discards a packet whose overlay header fails verifyheader, it frees the skb and continues the loop: if headercheck estats.rxencapserrors++; continue; The normal and...

EUVD-2026-59671

In the Linux kernel, the following vulnerability has been resolved: um: vector: fix use-after-free in vectormmsgrx When vectormmsgrx discards a packet whose overlay header fails verifyheader, it frees the skb and continues the loop: if headercheck estats.rxencapserrors++; continue; The normal and...

CVE-2026-74478

CVE-2026-74478 affects the Linux kernel, specifically the vector_mmsg_rx() path. When a packet is discarded because verify_header() fails, the code previously continued without advancing the slot, leaving a freed skb in the vector and causing a use-after-free in the RX path. The issue can be trig...

CVE-2026-74478 um: vector: fix use-after-free in vector_mmsg_rx()

In the Linux kernel, the following vulnerability has been resolved: um: vector: fix use-after-free in vectormmsgrx When vectormmsgrx discards a packet whose overlay header fails verifyheader, it frees the skb and continues the loop: if headercheck estats.rxencapserrors++; continue; The normal and...

CVE-2026-74478 um: vector: fix use-after-free in vector_mmsg_rx()

In the Linux kernel, the following vulnerability has been resolved: um: vector: fix use-after-free in vectormmsgrx When vectormmsgrx discards a packet whose overlay header fails verifyheader, it frees the skb and continues the loop: if headercheck estats.rxencapserrors++; continue; The normal and...

Linux Distros Unpatched Vulnerability : CVE-2026-74478

"The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - um: vector: fix use-after-free in vectormmsgrx When vectormmsgrx discards a packet whose overlay header fails verifyheader, it frees the skb and continues the...

CVE-2026-68296

A flaw was found in the Linux kernel's Generic Routing Encapsulation GRE tunnel implementation. An issue with how lockless transmission was handled for GRE tunnels with Sequence Number SEQ or Checksum CSUM features could lead to a deadlock. This deadlock occurs when the GRE transmit function...

Linux Distros Unpatched Vulnerability : CVE-2026-68296

"The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - net: gre: fix lltx regression for GRE tunnels with SEQ/CSUM Before commit 00d066a4d4ed netdevfeatures: convert NETIFFLLTX to dev-lltx, NETIFFLLTX was set...

CVE-2026-68296

In the Linux kernel, the following vulnerability has been resolved: net: gre: fix lltx regression for GRE tunnels with SEQ/CSUM Before commit 00d066a4d4ed "netdevfeatures: convert NETIFFLLTX to dev-lltx", NETIFFLLTX was set unconditionally in both gretunnelinit and ip6gretnlinitfeatures alongside...

CVE-2026-68296

In the Linux kernel, the following vulnerability has been resolved: net: gre: fix lltx regression for GRE tunnels with SEQ/CSUM Before commit 00d066a4d4ed "netdevfeatures: convert NETIFFLLTX to dev-lltx", NETIFFLLTX was set unconditionally in both gretunnelinit and ip6gretnlinitfeatures alongside...

UBUNTU-CVE-2026-68296

In the Linux kernel, the following vulnerability has been resolved: net: gre: fix lltx regression for GRE tunnels with SEQ/CSUM Before commit 00d066a4d4ed "netdevfeatures: convert NETIFFLLTX to dev-lltx", NETIFFLLTX was set unconditionally in both gretunnelinit and ip6gretnlinitfeatures alongside...

CVE-2026-68121

In the Linux kernel, the following vulnerability has been resolved: pppoe: reload header pointer after devhardheader pppoesendmsg saves a pointer to the PPPoE header before calling devhardheader. Device header callbacks are allowed to reallocate the skb head, invalidating pointers into it. This c...

CVE-2026-68296 net: gre: fix lltx regression for GRE tunnels with SEQ/CSUM

In the Linux kernel, the following vulnerability has been resolved: net: gre: fix lltx regression for GRE tunnels with SEQ/CSUM Before commit 00d066a4d4ed "netdevfeatures: convert NETIFFLLTX to dev-lltx", NETIFFLLTX was set unconditionally in both gretunnelinit and ip6gretnlinitfeatures alongside...

CVE-2026-68296 net: gre: fix lltx regression for GRE tunnels with SEQ/CSUM

In the Linux kernel, the following vulnerability has been resolved: net: gre: fix lltx regression for GRE tunnels with SEQ/CSUM Before commit 00d066a4d4ed "netdevfeatures: convert NETIFFLLTX to dev-lltx", NETIFFLLTX was set unconditionally in both gretunnelinit and ip6gretnlinitfeatures alongside...

EUVD-2026-55397

In the Linux kernel, the following vulnerability has been resolved: net: gre: fix lltx regression for GRE tunnels with SEQ/CSUM Before commit 00d066a4d4ed "netdevfeatures: convert NETIFFLLTX to dev-lltx", NETIFFLLTX was set unconditionally in both gretunnelinit and ip6gretnlinitfeatures alongside...

CVE-2026-68296

CVE-2026-68296 refers to a Linux kernel issue where GRE/GRETAP/ip6gre tunnels with SEQ/CSUM could lose lockless TX due to a regression in NETIF_F_LLTX handling. The root cause was that after the 00d066a4d4ed commit, dev->lltx was assigned after the early returns, breaking the unconditional TX ...