Use After Free Affecting zephyrproject-rtos/zephyr package, versions [,4.3.1-rc1)[4.4.0-rc1,4.4.1-rc1)
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
- disclosed16 Jun 2026
- credittpambor
Introduced: 16 Jun 2026
CVE-2026-10640 (opens in a new tab)How to fix?
Upgrade zephyrproject-rtos/zephyr to version 4.3.1-rc1, 4.4.1-rc1 or higher.
Overview
Affected versions of this package are vulnerable to Use After Free in the net_pkt_iface process after sending data in IPv6 Neighbor Discovery. An attacker can cause memory corruption, denial of service, or data integrity issues by sending crafted ICMPv6 Neighbor Solicitation packets to a node with native IPv6 enabled and per-interface statistics configured. This is only exploitable if per-interface statistics are enabled (CONFIG_NET_STATISTICS_PER_INTERFACE).