CVE-2026-74221 (GCVE-0-2026-74221)
Vulnerability from cvelistv5
Published
2026-09-29 21:29
Modified
2026-09-30 13:47
Severity ?
8.8 (High) - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N
8.2 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H
CWE
  • CWE-195 - Signed to Unsigned Conversion Error
Summary
U-Boot before 2026.10-rc5 contains a buffer overflow in nfs_readlink_reply() function in net/nfs-common.c when processing NFS server responses. A malicious NFS server can send crafted READLINK replies with negative or oversized symlink length values to corrupt memory and crash the bootloader.
References
Impacted products
Vendor Product Version
u-boot u-boot Version: 0   < 2026.10-rc5
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