CVE-2026-29007

Name
CVE-2026-29007
Description
U-Boot through 2026.04-rc3 contains an out-of-bounds read vulnerability in tcp_rx_state_machine() (net/tcp.c) when CONFIG_PROT_TCP is enabled, allowing remote attackers to read beyond TCP segment boundaries by crafting a malicious packet with a mismatched IP total length and TCP data offset field. Attackers can send a packet with an IP total length of 40 bytes and a TCP data offset claiming 60 bytes of header to cause tcp_parse_options() to read 40 bytes past the end of the TCP segment, potentially corrupting connection state variables such as rmt_win_scale and rmt_timestamp to disrupt TCP window calculations.
NVD Severity
unknown
Other trackers
CVE, NVD, CERT, CVE Details, CIRCL, Arch Linux, Debian, Red Hat, Ubuntu, Gentoo, SUSE (Bugzilla), SUSE (CVE), Mageia
Mailing lists
oss-security, full-disclosure, bugtraq
Exploits
Exploit DB, Metasploit
Forges
GitHub (code, issues), Aports (code, issues)

References

Type URI
disclosure@vulncheck.com https://lists.denx.de/pipermail/u-boot/2026-May/617853.html
disclosure@vulncheck.com https://u-boot.org/
disclosure@vulncheck.com https://www.vulncheck.com/advisories/u-boot-rc3-out-of-bounds-read-in-tcp-rx-state-machine-via-tcp-c
disclosure@vulncheck.com https://y637f9qq2x.com/posts/u-boot-tcp-nfs-vulns/

Match rules

CPE URI Source package Min version Max version
cpe:2.3:a:denx:u-boot:*:*:*:*:*:*:*:* u-boot >= None < 2026.04

Vulnerable and fixed packages

Source package Branch Version Maintainer Status
u-boot edge-main 2026.01-r1 Milan P. Stanić <mps@arvanta.net> possibly vulnerable
u-boot edge-main 2026.01-r0 Milan P. Stanić <mps@arvanta.net> possibly vulnerable
u-boot edge-main 2025.10-r6 Milan P. Stanić <mps@arvanta.net> possibly vulnerable
u-boot edge-main 2025.10-r5 Milan P. Stanić <mps@arvanta.net> possibly vulnerable
u-boot edge-main 2025.10-r4 Milan P. Stanić <mps@arvanta.net> possibly vulnerable
u-boot edge-main 2025.10-r3 Milan P. Stanić <mps@arvanta.net> possibly vulnerable
u-boot edge-main 2025.10-r2 Milan P. Stanić <mps@arvanta.net> possibly vulnerable
u-boot edge-main 2025.10-r1 Milan P. Stanić <mps@arvanta.net> possibly vulnerable
u-boot edge-main 2025.10-r0 Milan P. Stanić <mps@arvanta.net> possibly vulnerable
u-boot edge-main 2025.07-r5 Milan P. Stanić <mps@arvanta.net> possibly vulnerable
u-boot edge-main 2025.07-r4 Milan P. Stanić <mps@arvanta.net> possibly vulnerable
u-boot edge-main 2025.07-r3 Milan P. Stanić <mps@arvanta.net> possibly vulnerable
u-boot edge-main 2025.07-r2 Milan P. Stanić <mps@arvanta.net> possibly vulnerable
u-boot edge-main 2025.07-r1 Milan P. Stanić <mps@arvanta.net> possibly vulnerable
u-boot edge-main 2025.07-r0 Milan P. Stanić <mps@arvanta.net> possibly vulnerable
u-boot edge-main 2025.04-r2 Milan P. Stanić <mps@arvanta.net> possibly vulnerable
u-boot edge-main 2025.04-r1 Milan P. Stanić <mps@arvanta.net> possibly vulnerable
u-boot edge-main 2025.04-r0 Milan P. Stanić <mps@arvanta.net> possibly vulnerable
u-boot edge-main 2025.01-r0 Milan P. Stanić <mps@arvanta.net> possibly vulnerable
u-boot edge-main 2024.10-r3 Milan P. Stanić <mps@arvanta.net> possibly vulnerable
u-boot edge-main 2024.10-r2 Milan P. Stanić <mps@arvanta.net> possibly vulnerable
u-boot edge-main 2021.04-r4 Milan P. Stanić <mps@arvanta.net> possibly vulnerable
u-boot edge-main 2021.04-r3 Milan P. Stanić <mps@arvanta.net> possibly vulnerable
u-boot edge-main 2021.04-r2 Milan P. Stanić <mps@arvanta.net> possibly vulnerable
u-boot edge-main 2021.04-r0 Milan P. Stanić <mps@arvanta.net> possibly vulnerable
u-boot 3.23-main 2025.10-r5 Milan P. Stanić <mps@arvanta.net> possibly vulnerable
u-boot 3.23-main 2025.10-r4 Milan P. Stanić <mps@arvanta.net> possibly vulnerable
u-boot 3.22-main 2025.04-r7 Milan P. Stanić <mps@arvanta.net> possibly vulnerable
u-boot 3.22-main 2025.04-r6 Milan P. Stanić <mps@arvanta.net> possibly vulnerable
u-boot 3.22-main 2025.04-r5 Milan P. Stanić <mps@arvanta.net> possibly vulnerable
u-boot 3.22-main 2025.04-r4 Milan P. Stanić <mps@arvanta.net> possibly vulnerable
u-boot 3.22-main 2025.04-r3 Milan P. Stanić <mps@arvanta.net> possibly vulnerable
u-boot 3.22-main 2025.04-r2 Milan P. Stanić <mps@arvanta.net> possibly vulnerable
u-boot 3.22-main 2025.04-r1 Milan P. Stanić <mps@arvanta.net> possibly vulnerable
u-boot 3.22-main 2021.04-r0 None possibly vulnerable
u-boot 3.21-main 2024.10-r8 Milan P. Stanić <mps@arvanta.net> possibly vulnerable
u-boot 3.21-main 2024.10-r7 Milan P. Stanić <mps@arvanta.net> possibly vulnerable
u-boot 3.21-main 2024.10-r6 Milan P. Stanić <mps@arvanta.net> possibly vulnerable
u-boot 3.21-main 2024.10-r5 Milan P. Stanić <mps@arvanta.net> possibly vulnerable
u-boot 3.21-main 2024.10-r4 Milan P. Stanić <mps@arvanta.net> possibly vulnerable
u-boot 3.21-main 2024.10-r3 Milan P. Stanić <mps@arvanta.net> possibly vulnerable
u-boot 3.21-main 2024.10-r2 Milan P. Stanić <mps@arvanta.net> possibly vulnerable
u-boot 3.21-main 2021.04-r0 None possibly vulnerable
u-boot 3.20-main 2024.04-r7 Milan P. Stanić <mps@arvanta.net> possibly vulnerable
u-boot 3.20-main 2024.04-r6 Milan P. Stanić <mps@arvanta.net> possibly vulnerable
u-boot 3.20-main 2024.04-r5 Milan P. Stanić <mps@arvanta.net> possibly vulnerable
u-boot 3.20-main 2024.04-r4 Milan P. Stanić <mps@arvanta.net> possibly vulnerable
u-boot 3.20-main 2024.04-r3 Milan P. Stanić <mps@arvanta.net> possibly vulnerable
u-boot 3.20-main 2024.04-r2 Milan P. Stanić <mps@arvanta.net> possibly vulnerable
u-boot 3.20-main 2024.04-r1 Milan P. Stanić <mps@arvanta.net> possibly vulnerable
u-boot 3.20-main 2021.04-r0 None possibly vulnerable
u-boot 3.19-main 2023.10-r9 Milan P. Stanić <mps@arvanta.net> possibly vulnerable
u-boot 3.19-main 2023.10-r8 Milan P. Stanić <mps@arvanta.net> possibly vulnerable
u-boot 3.19-main 2023.10-r7 Milan P. Stanić <mps@arvanta.net> possibly vulnerable
u-boot 3.19-main 2023.10-r6 Milan P. Stanić <mps@arvanta.net> possibly vulnerable
u-boot 3.19-main 2023.10-r5 Milan P. Stanić <mps@arvanta.net> possibly vulnerable
u-boot 3.19-main 2023.10-r4 Milan P. Stanić <mps@arvanta.net> possibly vulnerable
u-boot 3.19-main 2023.10-r3 Milan P. Stanić <mps@arvanta.net> possibly vulnerable
u-boot 3.19-main 2021.04-r0 None possibly vulnerable