UBUNTU-CVE-2026-74225

See a problem?
Please try reporting it to the source first.
Source
https://ubuntu.com/security/CVE-2026-74225
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-74225.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-74225
Upstream
Downstream
USN (2)
Related
USN (2)
Published
2026-09-29T22:18:00Z
Modified
2026-10-21T23:11:56Z
Severity
  • 7.1 (High) CVSS_V3 - CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H CVSS Calculator
  • 7.1 (High) CVSS_V4 - CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

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.

References

Affected packages

Ubuntu:22.04:LTS / u-boot-nezha

Package

Name
u-boot-nezha
Purl
pkg:deb/ubuntu/u-boot-nezha?arch=source&distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

2021.*
2021.09+git20211008.62392d3-0ubuntu1
2022.*
2022.04+git20220405.7446a472-0ubuntu0.1
2022.04+git20220405.7446a472-0ubuntu0.2
2022.04+git20220405.7446a472-0ubuntu0.3
2022.04+git20220405.7446a472-0ubuntu0.4

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "u-boot-nezha",
            "binary_version":  "2022.04+git20220405.7446a472-0ubuntu0.4"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-74225.json"

Ubuntu:24.04:LTS / u-boot

Package

Name
u-boot
Purl
pkg:deb/ubuntu/u-boot?arch=source&distro=noble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
2025.10-0ubuntu0.24.04.4

Affected versions

2023.*
2023.07+dfsg-1ubuntu2
2024.*
2024.01+dfsg-1ubuntu1
2024.01+dfsg-1ubuntu2
2024.01+dfsg-1ubuntu3
2024.01+dfsg-1ubuntu4
2024.01+dfsg-1ubuntu5
2024.01+dfsg-1ubuntu5.1
2024.01+dfsg-1ubuntu5.2
2025.*
2025.01-0ubuntu0.24.04.1
2025.01-0ubuntu0.24.04.2
2025.10-0ubuntu0.24.04.1
2025.10-0ubuntu0.24.04.2
2025.10-0ubuntu0.24.04.3

Ecosystem specific 

{
    "availability":  "No subscription required",
    "binaries":  [
        {
            "binary_name":  "u-boot-amlogic",
            "binary_version":  "2025.10-0ubuntu0.24.04.4"
        },
        {
            "binary_name":  "u-boot-amlogic-binaries",
            "binary_version":  "2025.10-0ubuntu0.24.04.4"
        },
        {
            "binary_name":  "u-boot-asahi",
            "binary_version":  "2025.10-0ubuntu0.24.04.4"
        },
        {
            "binary_name":  "u-boot-exynos",
            "binary_version":  "2025.10-0ubuntu0.24.04.4"
        },
        {
            "binary_name":  "u-boot-exynos-binaries",
            "binary_version":  "2025.10-0ubuntu0.24.04.4"
        },
        {
            "binary_name":  "u-boot-imx",
            "binary_version":  "2025.10-0ubuntu0.24.04.4"
        },
        {
            "binary_name":  "u-boot-microchip",
            "binary_version":  "2025.10-0ubuntu0.24.04.4"
        },
        {
            "binary_name":  "u-boot-mvebu",
            "binary_version":  "2025.10-0ubuntu0.24.04.4"
        },
        {
            "binary_name":  "u-boot-omap",
            "binary_version":  "2025.10-0ubuntu0.24.04.4"
        },
        {
            "binary_name":  "u-boot-qcom",
            "binary_version":  "2025.10-0ubuntu0.24.04.4"
        },
        {
            "binary_name":  "u-boot-qemu",
            "binary_version":  "2025.10-0ubuntu0.24.04.4"
        },
        {
            "binary_name":  "u-boot-rockchip",
            "binary_version":  "2025.10-0ubuntu0.24.04.4"
        },
        {
            "binary_name":  "u-boot-rpi",
            "binary_version":  "2025.10-0ubuntu0.24.04.4"
        },
        {
            "binary_name":  "u-boot-sifive",
            "binary_version":  "2025.10-0ubuntu0.24.04.4"
        },
        {
            "binary_name":  "u-boot-sitara-binaries",
            "binary_version":  "2025.10-0ubuntu0.24.04.4"
        },
        {
            "binary_name":  "u-boot-starfive",
            "binary_version":  "2025.10-0ubuntu0.24.04.4"
        },
        {
            "binary_name":  "u-boot-stm32",
            "binary_version":  "2025.10-0ubuntu0.24.04.4"
        },
        {
            "binary_name":  "u-boot-sunxi",
            "binary_version":  "2025.10-0ubuntu0.24.04.4"
        },
        {
            "binary_name":  "u-boot-tegra",
            "binary_version":  "2025.10-0ubuntu0.24.04.4"
        },
        {
            "binary_name":  "u-boot-tools",
            "binary_version":  "2025.10-0ubuntu0.24.04.4"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-74225.json"

Ubuntu:24.04:LTS / u-boot-nezha

Package

Name
u-boot-nezha
Purl
pkg:deb/ubuntu/u-boot-nezha?arch=source&distro=noble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

2022.*
2022.10-1089-g528ae9bc6c-0ubuntu2
2024.*
2024.01~rc1-190-g2e89b706f5-0ubuntu1
2024.01~rc1-190-g2e89b706f5-0ubuntu2
2024.01~rc1-190-g2e89b706f5-0ubuntu2.24.04.2

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "u-boot-nezha",
            "binary_version":  "2024.01~rc1-190-g2e89b706f5-0ubuntu2.24.04.2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-74225.json"

Ubuntu:26.10 / u-boot

Package

Name
u-boot
Purl
pkg:deb/ubuntu/u-boot?arch=source&distro=stonking

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
2025.10-0ubuntu6

Affected versions

2025.*
2025.10-0ubuntu2
2025.10-0ubuntu3
2025.10-0ubuntu4
2025.10-0ubuntu5

Ecosystem specific 

{
    "availability":  "No subscription required",
    "binaries":  [
        {
            "binary_name":  "u-boot-amlogic",
            "binary_version":  "2025.10-0ubuntu6"
        },
        {
            "binary_name":  "u-boot-amlogic-binaries",
            "binary_version":  "2025.10-0ubuntu6"
        },
        {
            "binary_name":  "u-boot-asahi",
            "binary_version":  "2025.10-0ubuntu6"
        },
        {
            "binary_name":  "u-boot-exynos",
            "binary_version":  "2025.10-0ubuntu6"
        },
        {
            "binary_name":  "u-boot-exynos-binaries",
            "binary_version":  "2025.10-0ubuntu6"
        },
        {
            "binary_name":  "u-boot-imx",
            "binary_version":  "2025.10-0ubuntu6"
        },
        {
            "binary_name":  "u-boot-microchip",
            "binary_version":  "2025.10-0ubuntu6"
        },
        {
            "binary_name":  "u-boot-mvebu",
            "binary_version":  "2025.10-0ubuntu6"
        },
        {
            "binary_name":  "u-boot-omap",
            "binary_version":  "2025.10-0ubuntu6"
        },
        {
            "binary_name":  "u-boot-qcom",
            "binary_version":  "2025.10-0ubuntu6"
        },
        {
            "binary_name":  "u-boot-qemu",
            "binary_version":  "2025.10-0ubuntu6"
        },
        {
            "binary_name":  "u-boot-rockchip",
            "binary_version":  "2025.10-0ubuntu6"
        },
        {
            "binary_name":  "u-boot-rpi",
            "binary_version":  "2025.10-0ubuntu6"
        },
        {
            "binary_name":  "u-boot-sifive",
            "binary_version":  "2025.10-0ubuntu6"
        },
        {
            "binary_name":  "u-boot-sitara-binaries",
            "binary_version":  "2025.10-0ubuntu6"
        },
        {
            "binary_name":  "u-boot-starfive",
            "binary_version":  "2025.10-0ubuntu6"
        },
        {
            "binary_name":  "u-boot-stm32",
            "binary_version":  "2025.10-0ubuntu6"
        },
        {
            "binary_name":  "u-boot-sunxi",
            "binary_version":  "2025.10-0ubuntu6"
        },
        {
            "binary_name":  "u-boot-tegra",
            "binary_version":  "2025.10-0ubuntu6"
        },
        {
            "binary_name":  "u-boot-tools",
            "binary_version":  "2025.10-0ubuntu6"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-74225.json"

Ubuntu:26.04:LTS / u-boot

Package

Name
u-boot
Purl
pkg:deb/ubuntu/u-boot?arch=source&distro=resolute

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
2025.10-0ubuntu2.2

Affected versions

2025.*
2025.01-3ubuntu4
2025.10-0ubuntu1
2025.10-0ubuntu2
2025.10-0ubuntu2.1

Ecosystem specific 

{
    "availability":  "No subscription required",
    "binaries":  [
        {
            "binary_name":  "u-boot-amlogic",
            "binary_version":  "2025.10-0ubuntu2.2"
        },
        {
            "binary_name":  "u-boot-amlogic-binaries",
            "binary_version":  "2025.10-0ubuntu2.2"
        },
        {
            "binary_name":  "u-boot-asahi",
            "binary_version":  "2025.10-0ubuntu2.2"
        },
        {
            "binary_name":  "u-boot-exynos",
            "binary_version":  "2025.10-0ubuntu2.2"
        },
        {
            "binary_name":  "u-boot-exynos-binaries",
            "binary_version":  "2025.10-0ubuntu2.2"
        },
        {
            "binary_name":  "u-boot-imx",
            "binary_version":  "2025.10-0ubuntu2.2"
        },
        {
            "binary_name":  "u-boot-microchip",
            "binary_version":  "2025.10-0ubuntu2.2"
        },
        {
            "binary_name":  "u-boot-mvebu",
            "binary_version":  "2025.10-0ubuntu2.2"
        },
        {
            "binary_name":  "u-boot-omap",
            "binary_version":  "2025.10-0ubuntu2.2"
        },
        {
            "binary_name":  "u-boot-qcom",
            "binary_version":  "2025.10-0ubuntu2.2"
        },
        {
            "binary_name":  "u-boot-qemu",
            "binary_version":  "2025.10-0ubuntu2.2"
        },
        {
            "binary_name":  "u-boot-rockchip",
            "binary_version":  "2025.10-0ubuntu2.2"
        },
        {
            "binary_name":  "u-boot-rpi",
            "binary_version":  "2025.10-0ubuntu2.2"
        },
        {
            "binary_name":  "u-boot-sifive",
            "binary_version":  "2025.10-0ubuntu2.2"
        },
        {
            "binary_name":  "u-boot-sitara-binaries",
            "binary_version":  "2025.10-0ubuntu2.2"
        },
        {
            "binary_name":  "u-boot-starfive",
            "binary_version":  "2025.10-0ubuntu2.2"
        },
        {
            "binary_name":  "u-boot-stm32",
            "binary_version":  "2025.10-0ubuntu2.2"
        },
        {
            "binary_name":  "u-boot-sunxi",
            "binary_version":  "2025.10-0ubuntu2.2"
        },
        {
            "binary_name":  "u-boot-tegra",
            "binary_version":  "2025.10-0ubuntu2.2"
        },
        {
            "binary_name":  "u-boot-tools",
            "binary_version":  "2025.10-0ubuntu2.2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-74225.json"