CVE-2026-71974: u-boot u-boot

U-Boot before 2026.10-rc3 Out-of-Bounds Write via Android Bootmeth Partition Read

CVSS 4.3 MediumEPSS 0.0018 · 7th percentile

Published by the CVE Program (CNA: VulnCheck) at 29 Sept 2026, 21:29 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

Affected products, as the CNA wrote them
Vendor	Product	Versions
u-boot	u-boot pkg:github/u-boot/u-boot	affected before 2026.10-rc3 custom Other versions: unaffected

Identifiers

CVE-2026-71974

CNA

VulnCheck

Weakness (CWE)

CWE-787

Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

Severity and exploitation

Score	Rating	CVSS	Vector	Source
4.3	Medium	4.0	CVSS:4.0/AV:P/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N	CNA (VulnCheck)Used for this record
4.8	Medium	3.1	CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H	CNA (VulnCheck)

CISA KEV Not listed.
EPSS 0.0018, the 7th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

This record came from the full history of the CVE Program, published 29 Sept 2026. New records show when each source confirmed them.

Sources

References from the CNA

github.com/u-boot/u-boot/commit/35432ef6fe2c79ab72709966e64815a45eb55c76 patch
github.com/u-boot/u-boot/blob/v2026.07/boot/bootmeth_android.c#L356 technical-description
patch.msgid.link/[email protected] mailing-list
github.com/u-boot/u-boot product
www.vulncheck.com/advisories/u-boot-before-2026.10-rc3-out-of-bounds-write-via-android-bootmeth-partition-read third-party-advisory

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.