What is CVE-2026-29009?

CVE-2026-29009 is a high-severity vulnerability in U-boot, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 8.2/10. Published 2026-07-08.

How severe is CVE-2026-29009?

High severity. CVSS v3 base score is 8.2 out of 10.

Buffer overflow in U-boot

CVE-2026-29009

U-Boot through 2026.04-rc3 contains a buffer overflow vulnerability in nfs_readlink_reply() (net/nfs-common.c) when CONFIG_CMD_NFS is enabled, allowing a malicious or compromised NFS server to overflow the 2048-byte nfs_path_buff buffer by…

Vulnerability class: Buffer Overflow

CVSS v3 metric

CVSS v3 base score 8.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H.

Affected products

U-boot — versions 0

Weakness classification (CWE)

CWE-120 — Buffer Copy without Checking Size of Input (Classic Buffer Overflow)

References

disclosure@vulncheck.com (issue-tracking)
disclosure@vulncheck.com (product)
disclosure@vulncheck.com (third-party-advisory)

Frequently asked questions

What is CVE-2026-29009?: CVE-2026-29009 is a high-severity vulnerability in U-boot, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 8.2/10. Published 2026-07-08.
How severe is CVE-2026-29009?: High severity. CVSS v3 base score is 8.2 out of 10.