MEDIUM 5.2 NVD
CVE-2026-71973
U-Boot before 2026.10-rc4 contains an integer overflow vulnerability in sqfs_read_directory_table() function when allocating the directory table buffer. Attacke
U-Boot before 2026.10-rc4 contains an integer overflow vulnerability in sqfs_read_directory_table() function when allocating the directory table buffer. Attackers can supply a crafted SquashFS image with an attacker-controlled superblock metablks_count value that causes heap buffer under-allocation and out-of-bounds writes, corrupting heap memory and crashing the bootloader.
References
- https://github.com/u-boot/u-boot
- https://github.com/u-boot/u-boot/blob/v2026.07/fs/squashfs/sqfs.c#L814
- https://github.com/u-boot/u-boot/commit/561ae28cb56a082cfa90c1c421c4955bc215470b
- https://www.vulncheck.com/advisories/u-boot-before-2026.10-rc4-integer-overflow-in-squashf
This medium severity vulnerability with a CVSS score of 5.2 was published on 2026-09-29 via NVD.
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