CVE-2026-15390

critical · 9

Das U-Boot with CONFIG_IP_DEFRAG=y parameter fails to clear IP reassembly state after delivering a complete datagram. An attacker who can deliver fragmented IP traffic can execute arbitrary code by sending duplicated last-fragment IP packets. This issue was fixed in commit b1aec609bb5e0d08c25c888c91935287ab4ee5fa in version 2026.07.

CVSS

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EPSS (exploit prob.)

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EPSS percentile

2026-09-29

Published

CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Weaknesses

CWE-459CWE-787

References

https://cert.pl/en/posts/2026/09/CVE-2026-15390
https://source.denx.de/u-boot/u-boot/-/commit/b1aec609bb5e0d08c25c888c91935287ab4ee5fa

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2026-15390