Out-of-bounds Write Affecting zephyrproject-rtos/zephyr package, versions [,4.3.1-rc1)[4.4.0-rc1,4.4.0-rc2)
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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- published21 Jun 2026
- disclosed4 Jun 2026
- creditwxzzzzzzz
Introduced: 4 Jun 2026
CVE-2026-5589 (opens in a new tab)How to fix?
Upgrade zephyrproject-rtos/zephyr to version 4.3.1-rc1, 4.4.0-rc2 or higher.
Overview
Affected versions of this package are vulnerable to Out-of-bounds Write in the bt_mesh_sol_recv function when parsing solicitation PDUs from raw BLE advertising payloads. An attacker can cause memory corruption or execute arbitrary code by sending a crafted non-connectable advertisement with a manipulated length byte, exploiting improper validation of the length field. This is only exploitable if CONFIG_BT_MESH_OD_PRIV_PROXY_SRV is enabled.