Out-of-Bounds Affecting torvalds/linux package, versions [5.19,6.1.191)[6.2,6.6.160)[6.7,6.12.114)[6.13,6.18.34)[6.19,6.19.7)
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-20787916
- published10 Oct 2026
- disclosed25 Mar 2026
- creditUnknown
Introduced: 25 Mar 2026
CVE-2026-23327 (opens in a new tab)How to fix?
Upgrade torvalds/linux to version 6.1.191, 6.6.160, 6.12.114, 6.18.34, 6.19.7 or higher.
Overview
Affected versions of this package are vulnerable to Out-of-Bounds in the cxl_payload_from_user_allowed process. An attacker can cause memory corruption or trigger a kernel crash by sending a raw mailbox command with an undersized payload, leading to out-of-bounds memory access during payload validation.
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