CVE-2026-72347

A flaw was found in the Linux kernel's netfilter xtconnmark module. This vulnerability occurs because the CONNMARK target, specifically revision 2, accepts user-controlled shift parameters without proper validation. An attacker with the ability to create netfilter rules could provide a shiftbits...

CVE-2026-72347

In the Linux kernel, the following vulnerability has been resolved: netfilter: xtconnmark: reject invalid shift parameters Revision 2 of the CONNMARK target accepts user-controlled shift parameters and applies them to 32-bit mark values in connmarktgshift. A shiftbits value of 32 or more triggers...

UBUNTU-CVE-2026-72347

In the Linux kernel, the following vulnerability has been resolved: netfilter: xtconnmark: reject invalid shift parameters Revision 2 of the CONNMARK target accepts user-controlled shift parameters and applies them to 32-bit mark values in connmarktgshift. A shiftbits value of 32 or more triggers...

EUVD-2026-59246

In the Linux kernel, the following vulnerability has been resolved: netfilter: xtconnmark: reject invalid shift parameters Revision 2 of the CONNMARK target accepts user-controlled shift parameters and applies them to 32-bit mark values in connmarktgshift. A shiftbits value of 32 or more triggers...

CVE-2026-72347 netfilter: xt_connmark: reject invalid shift parameters

In the Linux kernel, the following vulnerability has been resolved: netfilter: xtconnmark: reject invalid shift parameters Revision 2 of the CONNMARK target accepts user-controlled shift parameters and applies them to 32-bit mark values in connmarktgshift. A shiftbits value of 32 or more triggers...

CVE-2026-72347 netfilter: xt_connmark: reject invalid shift parameters

In the Linux kernel, the following vulnerability has been resolved: netfilter: xtconnmark: reject invalid shift parameters Revision 2 of the CONNMARK target accepts user-controlled shift parameters and applies them to 32-bit mark values in connmarktgshift. A shiftbits value of 32 or more triggers...

CVE-2026-72347

CVE-2026-72347 – Linux kernel netfilter xt_connmark vulnerability affecting the CONNMARK target (revision 2). The issue arises when user-controlled shift parameters are applied to 32-bit connmark values via the function in the connmark_tg_shift() path. A shift_bits value of 32 or more triggers an...

Linux Distros Unpatched Vulnerability : CVE-2026-72347

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - netfilter: xtconnmark: reject invalid shift parameters Revision 2 of the CONNMARK target accepts user- controlled shift parameters and applies them to 32-bit ma...