Out-of-bounds Read Affecting zephyrproject-rtos/zephyr package, versions [,3.7.2-rc2)[4.0,0-rc1,4.2.2)[4,3,0-rc1,4.4.0-rc1)


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.01% (3rd percentile)

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  • Snyk IDSNYK-UNMANAGED-ZEPHYRPROJECTRTOSZEPHYR-17111922
  • published31 May 2026
  • disclosed30 May 2026
  • creditdavisjam

Introduced: 30 May 2026

NewCVE-2026-5071  (opens in a new tab)
CWE-125  (opens in a new tab)

How to fix?

Upgrade zephyrproject-rtos/zephyr to version 3.7.2-rc2, 0-rc1,4.2.2, 3,0-rc1,4.4.0-rc1 or higher.

Overview

Affected versions of this package are vulnerable to Out-of-bounds Read in the zcan_sendto_ctx process. An attacker can cause the system to crash or leak adjacent memory by supplying an incomplete or truncated buffer to the sendto syscall, leading to an out-of-bounds read in socketcan_to_can_frame.

CVSS Base Scores

version 4.0
version 3.1