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VULNERABILITIES

CVE-2026-74225 Details

Description

U-Boot before 2026.10-rc5 contains out-of-bounds memory access in dhcp6_parse_options() that fails to validate SERVERID and CLIENTID option lengths from DHCPv6 packets. Attackers on the local network can send crafted DHCPv6 ADVERTISE or REPLY packets during netboot to corrupt memory and crash the bootloader.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: [email protected]CVSS-B:7.1 HIGHVector:CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://github.com/u-boot/u-boot [email protected]
https://github.com/u-boot/u-boot/blob/v2026.07/net/dhcpv6.c#L304 [email protected]
https://github.com/u-boot/u-boot/commit/20209a62bc8565fc1e040882bc03c71ff0d73076 [email protected]
https://www.vulncheck.com/advisories/u-boot-before-2026.10-rc5-out-of-bounds-write-via-dhcpv6 [email protected]

Weakness Enumeration

CWE-IDCWE NameSource
CWE-787Out-of-bounds Write[email protected]

Affected Products

No affected product data is available for this CVE.

Change History

2 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-74225
NVD Published Date:
Sep 29, 2026
NVD Last Modified:
Sep 30, 2026
Source:
[email protected]
CVE-2026-74225 Details - Not Deferred