CVE-2026-15390

CRITICAL 9.0CVE-2026-15390 · Published 29/09/2026 · updated 30/09/2026

In short

CVE-2026-15390 is a CRITICAL (CVSS 9.0) vulnerability.
Chance of exploitation in the next 30 days (EPSS): 0.19%, higher than 9.2% of all vulnerabilities.
No patched version is listed yet: follow the vendor's advisory in References.

Package	Affected versions	Patched versions
—	No affected product versions are listed for this vulnerability yet.

Description

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.

References

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

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