CVE-2026-74221

Katalog CVE

CVSS 8.2 · High EPSS 0,34%

Kerentanan Signed to Unsigned Conversion Error. Skor CVSS 3.1 8.2 (High) menurut vulncheck.com.

Deskripsi (NVD)

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.

Rincian

Terbit di NVD

29 September 2026

Terakhir diubah

30 September 2026

Status NVD

Awaiting Analysis

CVSS 3.1

8.2 (High), sumber vulncheck.com
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-195: Signed to Unsigned Conversion Error

EPSS (30 hari)

0,34% peluang dieksploitasi; lebih tinggi dari 26,0% CVE lain

Produk dan versi terdampak

NVD belum mencantumkan data produk (CPE) untuk CVE ini. Produk yang terdampak biasanya disebut di deskripsi dan di advisory vendor pada daftar referensi.

Referensi dan perbaikan

• https://github.com/u-boot/u-boot
• https://github.com/u-boot/u-boot/blob/v2026.07/net/nfs-common.c#L643
• https://github.com/u-boot/u-boot/commit/1c0aff3a5fbfeee7a8948f624e0b8554e6e0d8fd
• https://www.vulncheck.com/advisories/u-boot-before-2026.10-rc5-buffer-overflow-via-nfs-readlink