Upstream information

CVE-2026-71971 at MITRE

Description

U-Boot before 2026.10-rc3 with CONFIG_IP_DEFRAG enabled contains an out-of-bounds write vulnerability in the __net_defragment() function in net/net.c. Remote attackers can send a crafted IP fragment with non-zero offset and More-Fragments flag set during netboot to corrupt adjacent memory and crash the bootloader.

SUSE information

Overall state of this security issue: Pending

This issue is currently rated as having important severity.

CVSS v3 Scores
CVSS detail CNA (VulnCheck) SUSE
Base Score 8.2 8.2
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H
Attack Vector Network Network
Attack Complexity Low Low
Privileges Required None None
User Interaction None None
Scope Unchanged Unchanged
Confidentiality Impact None None
Integrity Impact Low Low
Availability Impact High High
CVSSv3 Version 3.1 3.1
CVSS v4 Scores
CVSS detail CNA (VulnCheck) SUSE
Base Score 8.8 8.8
Vector CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N/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 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N
Attack Vector Network Network
Attack Complexity Low Low
Attack Requirements None None
Privileges Required None None
User Interaction None None
Vulnerable System Confidentiality Impact None None
Vulnerable System Integrity Impact Low Low
Vulnerable System Availability Impact High High
Subsequent System Confidentiality Impact None None
Subsequent System Integrity Impact None None
Subsequent System Availability Impact None None
CVSSv4 Version 4.0 4.0
SUSE Bugzilla entry: 1283461 [NEW]

No SUSE Security Announcements cross referenced.

Status of this issue by product and package

Please note that this evaluation state might be work in progress, incomplete or outdated. Also information for service packs in the LTSS phase is only included for issues meeting the LTSS criteria. If in doubt, feel free to contact us for clarification. The updates are grouped by state of their lifecycle. SUSE product lifecycles are documented on the lifecycle page.

Product(s) Source package State
Products under general support and receiving all security fixes.
SUSE Linux Enterprise Desktop 15 SP7 u-boot Affected
SUSE Linux Enterprise Micro 5.3 u-boot Affected
SUSE Linux Enterprise Micro 5.4 u-boot Affected
SUSE Linux Enterprise Micro 5.5 u-boot Affected
SUSE Linux Enterprise Module for Basesystem 15 SP7 u-boot Affected
SUSE Linux Enterprise Server 15 SP7 u-boot Affected
SUSE Linux Enterprise Server 16.0 u-boot Affected
SUSE Linux Enterprise Server 16.1 u-boot Affected
SUSE Linux Enterprise Server for SAP Applications 15 SP7 u-boot Affected
SUSE Linux Micro 6.0 u-boot Affected
SUSE Linux Micro 6.1 u-boot Affected
SUSE Linux Micro 6.2 u-boot Affected
SUSE Linux Micro Extras 6.0 u-boot Affected
openSUSE Leap 16.0 u-boot Affected
Products under Long Term Service Pack support and receiving important and critical security fixes.
SUSE Linux Enterprise High Performance Computing 12 SP5 u-boot Affected
SUSE Linux Enterprise High Performance Computing 12 SP5 u-boot-rpi3 Affected
SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS u-boot Affected
SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS u-boot Affected
SUSE Linux Enterprise Server 12 SP5 u-boot Affected
SUSE Linux Enterprise Server 12 SP5 u-boot-rpi3 Affected
SUSE Linux Enterprise Server 12 SP5-LTSS u-boot Affected
SUSE Linux Enterprise Server 12 SP5-LTSS u-boot-rpi3 Affected
SUSE Linux Enterprise Server 15 SP4-LTSS u-boot Affected
SUSE Linux Enterprise Server 15 SP5-LTSS u-boot Affected
SUSE Linux Enterprise Server 15 SP6-LTSS u-boot Affected
SUSE Linux Enterprise Server for SAP Applications 15 SP4 u-boot Affected
SUSE Linux Enterprise Server for SAP Applications 15 SP5 u-boot Affected
SUSE Linux Enterprise Server for SAP Applications 15 SP6 u-boot Affected
Products past their end of life and not receiving proactive updates anymore.
SUSE CaaS Platform 4.0 u-boot Affected
SUSE Enterprise Storage 6 u-boot Affected
SUSE Enterprise Storage 6 u-boot-rpi3 Affected
SUSE Linux Enterprise Desktop 15 SP1 u-boot Affected
SUSE Linux Enterprise Desktop 15 SP1 u-boot-rpi3 Affected
SUSE Linux Enterprise High Performance Computing 15 SP1 u-boot Affected
SUSE Linux Enterprise High Performance Computing 15 SP1 u-boot-rpi3 Affected
SUSE Linux Enterprise High Performance Computing 15 SP1-ESPOS u-boot Affected
SUSE Linux Enterprise High Performance Computing 15 SP1-ESPOS u-boot-rpi3 Affected
SUSE Linux Enterprise High Performance Computing 15 SP1-LTSS u-boot Affected
SUSE Linux Enterprise High Performance Computing 15 SP1-LTSS u-boot-rpi3 Affected
SUSE Linux Enterprise Module for Basesystem 15 SP1 u-boot Affected
SUSE Linux Enterprise Module for Basesystem 15 SP1 u-boot-rpi3 Affected
SUSE Linux Enterprise Server 15 SP1 u-boot Affected
SUSE Linux Enterprise Server 15 SP1 u-boot-rpi3 Affected
SUSE Linux Enterprise Server 15 SP1-BCL u-boot Affected
SUSE Linux Enterprise Server 15 SP1-LTSS u-boot Affected
SUSE Linux Enterprise Server 15 SP1-LTSS u-boot-rpi3 Affected
SUSE Linux Enterprise Server 15 SP2-LTSS u-boot Affected
SUSE Linux Enterprise Server 15 SP3-LTSS u-boot Affected
SUSE Linux Enterprise Server for SAP Applications 15 SP1 u-boot Affected
SUSE Linux Enterprise Server for SAP Applications 15 SP1 u-boot-rpi3 Affected
SUSE Manager Proxy 4.0 u-boot Affected
SUSE Manager Proxy 4.0 u-boot-rpi3 Affected
SUSE Manager Retail Branch Server 4.0 u-boot Affected
SUSE Manager Retail Branch Server 4.0 u-boot-rpi3 Affected
SUSE Manager Server 4.0 u-boot Affected
SUSE Manager Server 4.0 u-boot-rpi3 Affected

SUSE Timeline for this CVE

CVE page created: Wed Sep 30 15:43:41 2026
CVE page last modified: Wed Sep 30 19:50:49 2026