U Boot
by Denx
Source repositories
CVEs (50)
| CVE | Vendor / Product | Sev | Risk | CVSS | EPSS | KEV | Published | Description |
|---|---|---|---|---|---|---|---|---|
| CVE-2022-30790 | Hig | 0.51 | 7.8 | 0.01 | Jun 8, 2022 | Das U-Boot 2022.01 has a Buffer Overflow, a different issue than CVE-2022-30552. | ||
| CVE-2020-10648 | Hig | 0.51 | 7.8 | 0.01 | Mar 19, 2020 | Das U-Boot through 2020.01 allows attackers to bypass verified boot restrictions and subsequently boot arbitrary images by providing a crafted FIT image to a system configured to boot the default configuration. | ||
| CVE-2019-13106 | Hig | 0.51 | 7.8 | 0.02 | Aug 6, 2019 | Das U-Boot versions 2016.09 through 2019.07-rc4 can memset() too much data while reading a crafted ext4 filesystem, which results in a stack buffer overflow and likely code execution. | ||
| CVE-2019-13105 | Hig | 0.51 | 7.8 | 0.01 | Aug 6, 2019 | Das U-Boot versions 2019.07-rc1 through 2019.07-rc4 can double-free a cached block of data when listing files in a crafted ext4 filesystem. | ||
| CVE-2019-13104 | Hig | 0.51 | 7.8 | 0.01 | Aug 6, 2019 | In Das U-Boot versions 2016.11-rc1 through 2019.07-rc4, an underflow can cause memcpy() to overwrite a very large amount of data (including the whole stack) while reading a crafted ext4 filesystem. | ||
| CVE-2018-18440 | Hig | 0.51 | 7.8 | 0.01 | Nov 20, 2018 | DENX U-Boot through 2018.09-rc1 has a locally exploitable buffer overflow via a crafted kernel image because filesystem loading is mishandled. | ||
| CVE-2022-2347 | Hig | 0.50 | 7.7 | 0.01 | Sep 23, 2022 | There exists an unchecked length field in UBoot. The U-Boot DFU implementation does not bound the length field in USB DFU download setup packets, and it does not verify that the transfer direction corresponds to the specified command. Consequently, if a physical attacker crafts… | ||
| CVE-2025-24857 | Hig | 0.49 | 7.6 | 0.00 | Dec 10, 2025 | Improper access control for volatile memory containing boot code in Universal Boot Loader (U-Boot) before 2017.11 and Qualcomm chips IPQ4019, IPQ5018, IPQ5322, IPQ6018, IPQ8064, IPQ8074, and IPQ9574 could allow an attacker to execute arbitrary code. | ||
| CVE-2026-29009 | Hig | 0.46 | 8.2 | 0.01 | Jul 8, 2026 | U-Boot before 2026.07-rc2 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 returning multiple relative symlink… | ||
| CVE-2026-46728 | Hig | 0.46 | 8.2 | 0.00 | May 16, 2026 | Das U-Boot before 2026.04 allows FIT (Flat Image Tree) signature verification bypass because hashed-nodes is omitted from a hash. | ||
| CVE-2026-33243 | Hig | 0.46 | 8.2 | 0.00 | Mar 20, 2026 | barebox is a bootloader. In barebox from version 2016.03.0 to before version 2026.03.1 (and the corresponding backport to 2025.09.3), an attacker could exploit a FIT signature verification vulnerability to trick the bootloader into booting different images than those that were… | ||
| CVE-2024-57259 | Hig | 0.46 | 7.1 | 0.00 | Feb 18, 2025 | sqfs_search_dir in Das U-Boot before 2025.01-rc1 exhibits an off-by-one error and resultant heap memory corruption for squashfs directory listing because the path separator is not considered in a size calculation. | ||
| CVE-2024-57258 | Hig | 0.46 | 7.1 | 0.00 | Feb 18, 2025 | Integer overflows in memory allocation in Das U-Boot before 2025.01-rc1 occur for a crafted squashfs filesystem via sbrk, via request2size, or because ptrdiff_t is mishandled on x86_64. | ||
| CVE-2024-57256 | Hig | 0.46 | 7.1 | 0.00 | Feb 18, 2025 | An integer overflow in ext4fs_read_symlink in Das U-Boot before 2025.01-rc1 occurs for zalloc (adding one to an le32 variable) via a crafted ext4 filesystem with an inode size of 0xffffffff, resulting in a malloc of zero and resultant memory overwrite. | ||
| CVE-2024-57255 | Hig | 0.46 | 7.1 | 0.00 | Feb 18, 2025 | An integer overflow in sqfs_resolve_symlink in Das U-Boot before 2025.01-rc1 occurs via a crafted squashfs filesystem with an inode size of 0xffffffff, resulting in a malloc of zero and resultant memory overwrite. | ||
| CVE-2024-57254 | Hig | 0.46 | 7.1 | 0.00 | Feb 18, 2025 | An integer overflow in sqfs_inode_size in Das U-Boot before 2025.01-rc1 occurs in the symlink size calculation via a crafted squashfs filesystem. | ||
| CVE-2018-3968 | Hig | 0.46 | 7.0 | 0.00 | Mar 21, 2019 | An exploitable vulnerability exists in the verified boot protection of the Das U-Boot from version 2013.07-rc1 to 2014.07-rc2. The affected versions lack proper FIT signature enforcement, which allows an attacker to bypass U-Boot's verified boot and execute an unsigned kernel,… | ||
| CVE-2026-29008 | Hig | 0.42 | 7.5 | 0.01 | Jul 8, 2026 | U-Boot through 2026.04-rc3 contains an integer underflow vulnerability in the tcp_rx_state_machine() function (net/tcp.c) that allows a network-adjacent attacker to crash the bootloader by sending a malformed TCP SYN+ACK packet with a manipulated data offset field causing… | ||
| CVE-2025-45512 | Med | 0.42 | 6.5 | 0.00 | Aug 5, 2025 | A lack of signature verification in the bootloader of DENX Software Engineering Das U-Boot (U-Boot) v1.1.3 allows attackers to install crafted firmware files, leading to arbitrary code execution. | ||
| CVE-2017-3226 | Med | 0.42 | 6.4 | 0.00 | Jul 24, 2018 | Das U-Boot is a device bootloader that can read its configuration from an AES encrypted file. Devices that make use of Das U-Boot's AES-CBC encryption feature using environment encryption (i.e., setting the configuration parameter CONFIG_ENV_AES=y) read environment variables… |
- risk 0.51cvss 7.8epss 0.01
Das U-Boot 2022.01 has a Buffer Overflow, a different issue than CVE-2022-30552.
- risk 0.51cvss 7.8epss 0.01
Das U-Boot through 2020.01 allows attackers to bypass verified boot restrictions and subsequently boot arbitrary images by providing a crafted FIT image to a system configured to boot the default configuration.
- risk 0.51cvss 7.8epss 0.02
Das U-Boot versions 2016.09 through 2019.07-rc4 can memset() too much data while reading a crafted ext4 filesystem, which results in a stack buffer overflow and likely code execution.
- risk 0.51cvss 7.8epss 0.01
Das U-Boot versions 2019.07-rc1 through 2019.07-rc4 can double-free a cached block of data when listing files in a crafted ext4 filesystem.
- risk 0.51cvss 7.8epss 0.01
In Das U-Boot versions 2016.11-rc1 through 2019.07-rc4, an underflow can cause memcpy() to overwrite a very large amount of data (including the whole stack) while reading a crafted ext4 filesystem.
- risk 0.51cvss 7.8epss 0.01
DENX U-Boot through 2018.09-rc1 has a locally exploitable buffer overflow via a crafted kernel image because filesystem loading is mishandled.
- risk 0.50cvss 7.7epss 0.01
There exists an unchecked length field in UBoot. The U-Boot DFU implementation does not bound the length field in USB DFU download setup packets, and it does not verify that the transfer direction corresponds to the specified command. Consequently, if a physical attacker crafts…
- risk 0.49cvss 7.6epss 0.00
Improper access control for volatile memory containing boot code in Universal Boot Loader (U-Boot) before 2017.11 and Qualcomm chips IPQ4019, IPQ5018, IPQ5322, IPQ6018, IPQ8064, IPQ8074, and IPQ9574 could allow an attacker to execute arbitrary code.
- risk 0.46cvss 8.2epss 0.01
U-Boot before 2026.07-rc2 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 returning multiple relative symlink…
- risk 0.46cvss 8.2epss 0.00
Das U-Boot before 2026.04 allows FIT (Flat Image Tree) signature verification bypass because hashed-nodes is omitted from a hash.
- risk 0.46cvss 8.2epss 0.00
barebox is a bootloader. In barebox from version 2016.03.0 to before version 2026.03.1 (and the corresponding backport to 2025.09.3), an attacker could exploit a FIT signature verification vulnerability to trick the bootloader into booting different images than those that were…
- risk 0.46cvss 7.1epss 0.00
sqfs_search_dir in Das U-Boot before 2025.01-rc1 exhibits an off-by-one error and resultant heap memory corruption for squashfs directory listing because the path separator is not considered in a size calculation.
- risk 0.46cvss 7.1epss 0.00
Integer overflows in memory allocation in Das U-Boot before 2025.01-rc1 occur for a crafted squashfs filesystem via sbrk, via request2size, or because ptrdiff_t is mishandled on x86_64.
- risk 0.46cvss 7.1epss 0.00
An integer overflow in ext4fs_read_symlink in Das U-Boot before 2025.01-rc1 occurs for zalloc (adding one to an le32 variable) via a crafted ext4 filesystem with an inode size of 0xffffffff, resulting in a malloc of zero and resultant memory overwrite.
- risk 0.46cvss 7.1epss 0.00
An integer overflow in sqfs_resolve_symlink in Das U-Boot before 2025.01-rc1 occurs via a crafted squashfs filesystem with an inode size of 0xffffffff, resulting in a malloc of zero and resultant memory overwrite.
- risk 0.46cvss 7.1epss 0.00
An integer overflow in sqfs_inode_size in Das U-Boot before 2025.01-rc1 occurs in the symlink size calculation via a crafted squashfs filesystem.
- risk 0.46cvss 7.0epss 0.00
An exploitable vulnerability exists in the verified boot protection of the Das U-Boot from version 2013.07-rc1 to 2014.07-rc2. The affected versions lack proper FIT signature enforcement, which allows an attacker to bypass U-Boot's verified boot and execute an unsigned kernel,…
- risk 0.42cvss 7.5epss 0.01
U-Boot through 2026.04-rc3 contains an integer underflow vulnerability in the tcp_rx_state_machine() function (net/tcp.c) that allows a network-adjacent attacker to crash the bootloader by sending a malformed TCP SYN+ACK packet with a manipulated data offset field causing…
- risk 0.42cvss 6.5epss 0.00
A lack of signature verification in the bootloader of DENX Software Engineering Das U-Boot (U-Boot) v1.1.3 allows attackers to install crafted firmware files, leading to arbitrary code execution.
- risk 0.42cvss 6.4epss 0.00
Das U-Boot is a device bootloader that can read its configuration from an AES encrypted file. Devices that make use of Das U-Boot's AES-CBC encryption feature using environment encryption (i.e., setting the configuration parameter CONFIG_ENV_AES=y) read environment variables…
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