Out-of-Bounds Affecting torvalds/linux package, versions [6.14,6.18.42)[6.19,7.1.6)
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-20791942
- published11 Oct 2026
- disclosed10 Aug 2026
- creditUnknown
Introduced: 10 Aug 2026
CVE-2026-68420 (opens in a new tab)How to fix?
Upgrade torvalds/linux to version 6.18.42, 7.1.6 or higher.
Overview
Affected versions of this package are vulnerable to Out-of-Bounds in the xfrm_tmpl_resolve_one process. An attacker can access sensitive kernel stack memory by installing a crafted outbound policy with an optional IPTFS template and sending matching local traffic, which results in an out-of-bounds stack read and potential leakage of kernel stack data to userspace.
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