CVE-2018-1000205

U-Boot contains a CWE-20: Improper Input Validation vulnerability in Verified boot signature...

5.5 Medium

U-Boot contains a CWE-20: Improper Input Validation vulnerability in Verified boot signature validation that can result in Bypass verified boot. This attack appear to be exploitable via Specially crafted FIT image and special device memory functionality.

Attack profile

How easy it is to exploit

Attack vector: Local
Complexity: Low
Privileges needed: None
User interaction: Required

What an attacker can affect

Confidentiality: None
Integrity: High
Availability: None

Exploit likelihood

0.72%Up 0.1 points since Apr 14, 2021

What each source reports

NVD Score used 5.5

Record: CVE-2018-1000205
CVSS 3.1: 5.5 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
CVSS 2.0: 4.3 MediumAV:N/AC:M/Au:N/C:N/I:P/A:N
Weakness: CWE-20
Updated: 2026-11-02

CVE List No score

Record: CVE-2018-1000205
Updated: 2026-11-02

EUVDEUVD-2018-1878 No score

Record: EUVD-2018-1878
Updated: 2026-11-03

GitHub AdvisoriesGHSA-8frp-j862-qcw3 5.5

U-Boot contains a CWE-20: Improper Input Validation vulnerability in Verified boot signature...

Record: GHSA-8frp-j862-qcw3
CVSS 3.1: 5.5 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
Weakness: CWE-20
Updated: 2026-11-02

OSV 5.5

Record: CVE-2018-1000205
CVSS 3.1: 5.5 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
Updated: 2026-11-02

OSVDEBIAN-CVE-2018-1000205 5.5

Record: DEBIAN-CVE-2018-1000205
CVSS 3.1: 5.5 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
Updated: 2026-11-02

OSVUBUNTU-CVE-2018-1000205 5.5

Record: UBUNTU-CVE-2018-1000205
CVSS 3.1: 5.5 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
Updated: 2026-11-02

Affected products

denx u-boot

Affected packages

Affected packages
Package	Affected	Fixed
`u-boot` Debian:12	All versions, plus listed versions 2023.01+dfsg-22023.01+dfsg-2+deb12u12023.01+dfsg-2+deb12u22023.01+dfsg-2+deb12u32023.04+dfsg-1 Show 20 moreShow less 2023.04~rc2+dfsg-12023.04~rc5+dfsg-12023.07+dfsg-12023.07~rc4+dfsg-12023.07~rc5+dfsg-12024.01+dfsg-12024.01+dfsg-22024.01+dfsg-32024.01+dfsg-42024.01+dfsg-52024.01+dfsg-62024.01+dfsg-72024.01~rc6+dfsg-12024.01~rc6+dfsg-22025.01-12025.01-22025.01-32025.01-3.12025.01-3.22026.10~rc5-1	None known
`u-boot` Debian:13	All versions, plus listed versions 2025.01-32025.01-3+deb13u12025.01-3.12025.01-3.22026.10~rc5-1	None known
`u-boot` Debian:14	All versions, plus listed versions 2025.01-32025.01-3.12025.01-3.22026.10~rc5-1	None known
`u-boot` Ubuntu:Pro:16.04:LTS	All versions, plus listed versions 2015.04+dfsg1-2ubuntu12015.10+dfsg1-22015.10+dfsg1-32015.10+dfsg1-42016.01+dfsg1-1 Show 7 moreShow less 2016.01+dfsg1-1ubuntu12016.01+dfsg1-2ubuntu12016.01+dfsg1-2ubuntu22016.01+dfsg1-2ubuntu32016.01+dfsg1-2ubuntu52016.01+dfsg1-2ubuntu5+esm12016.01+dfsg1-2ubuntu5+esm2	None known

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2018-1000205 is a medium vulnerability (CVSS 5.5) in Denx U-boot, published June 26, 2018. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.72%, the 54th percentile. No source names a fixed version.