CVE-2026-15390

Out-of-bounds write in Das U-Boot

Published Sep 29, 2026 CVSS 4.0 · 9 Critical EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

Sign in to view the affected projects.

Advisories

Source ID Title
Ubuntu USN Ubuntu USN USN-8884-1 U-Boot vulnerabilities
History
Type Values Removed Values Added
First Time appeared Denx Software Engineering
Denx Software Engineering das U-boot
Vendors & Products Denx Software Engineering
Denx Software Engineering das U-boot
Type Values Removed Values Added
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.
Title Out-of-bounds write in Das U-Boot
Weaknesses CWE-459
CWE-787
References
Metrics cvssV4_0

{'score': 9, 'vector': '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'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
CERT-PL
Published
Updated
Sep 29, 2026, 10:55 AM
Reserved
Jul 10, 2026, 11:51 AM
Status
Awaiting Analysis
Published
Sep 29, 2026, 10:17 AM
Modified
Sep 30, 2026, 7:38 PM