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CVE-2026-13351

7.5 high SSVC exploitation: none Analyzed
NVD · CVE.org

Zephyr's IPv6 network stack can be prevented from receiving or processing future incoming packets by sending a small number of maliciously fragmented IPv6 packets. When such a packet is handled by the fragment-header processing path, the associated RX network packet buffer (allocated from a memory slab) is not released back to the pool. Repeating the malicious packet exhausts all RX buffer slots, after which the device can no longer obtain RX buffers and stops receiving traffic, resulting in a denial of service.

Fix

Patch, vendor advisory and mitigation references on NVD 1

Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.

Change history 1

  1. First seenCVSS 7.5 · zephyrprojectNVD modified 2026-10-15 23:17

Affected (CPE criteria) 1

  • cpe:2.3:o:zephyrproject:zephyr:*:*:*:*:*:*:*:*

References 1