Out-of-Bounds Affecting torvalds/linux package, versions [2.6.35.9,2.6.36)[2.6.37,6.12.78)[6.13,6.18.19)[6.19,6.19.9)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-UNMANAGED-TORVALDSLINUX-20787927
- published10 Oct 2026
- disclosed20 Mar 2026
- creditUnknown
Introduced: 20 Mar 2026
CVE-2026-23276 (opens in a new tab)How to fix?
Upgrade torvalds/linux to version 2.6.36, 6.12.78, 6.18.19, 6.19.9 or higher.
Overview
Affected versions of this package are vulnerable to Out-of-Bounds through the iptunnel_xmit and ip6tunnel_xmit functions when a bond device in broadcast mode has GRE tap interfaces as slaves, and those GRE tunnels route back through the bond. An attacker can cause a kernel stack overflow and potentially crash the system by triggering infinite recursion between broadcast and tunnel transmission functions with multicast or broadcast traffic.
Note: The Linux kernel project assigns a CVE to every bug fix it ships, whether or not the bug has been shown to be exploitable. This advisory was generated from that process and has not been individually assessed for exploitability. See the kernel's CVE process documentation: https://github.com/torvalds/linux/blob/master/Documentation/process/cve.rst