UBUNTU-CVE-2026-74222

U-Boot before 2026.10-rc5 contains a use-after-free vulnerability in the httpcrecvcb function within the lwIP wget implementation. When HTTP data storage fails, the callback frees the connection PCB but returns ERRBUF instead of ERRABRT, causing the TCP input path to access released memory and...

CVE-2026-71971

U-Boot before 2026.10-rc3 with CONFIGIPDEFRAG enabled contains an out-of-bounds write vulnerability in the netdefragment function in net/net.c. Remote attackers can send a crafted IP fragment with non-zero offset and More-Fragments flag set during netboot to corrupt adjacent memory and crash the...

CVE-2026-74225 U-Boot before 2026.10-rc5 Out-of-Bounds Write via DHCPv6

U-Boot before 2026.10-rc5 contains out-of-bounds memory access in dhcp6parseoptions that fails to validate SERVERID and CLIENTID option lengths from DHCPv6 packets. Attackers on the local network can send crafted DHCPv6 ADVERTISE or REPLY packets during netboot to corrupt memory and crash the...

CVE-2026-74225 U-Boot before 2026.10-rc5 Out-of-Bounds Write via DHCPv6

U-Boot before 2026.10-rc5 contains out-of-bounds memory access in dhcp6parseoptions that fails to validate SERVERID and CLIENTID option lengths from DHCPv6 packets. Attackers on the local network can send crafted DHCPv6 ADVERTISE or REPLY packets during netboot to corrupt memory and crash the...

CVE-2026-74225

U-Boot before 2026.10-rc5 contains out-of-bounds memory access in dhcp6parseoptions that fails to validate SERVERID and CLIENTID option lengths from DHCPv6 packets. Attackers on the local network can send crafted DHCPv6 ADVERTISE or REPLY packets during netboot to corrupt memory and crash the...

CVE-2026-74225

The U-Boot bootloader (versions before 2026.10-rc5 ) is vulnerable to an out-of-bounds write within the dhcp6_parse_options() function. This issue stems from a failure to properly validate the SERVERID and CLIENTID option lengths received in DHCPv6 packets. An attacker positioned on the local net...

CVE-2026-74225 U-Boot before 2026.10-rc5 Out-of-Bounds Write via DHCPv6

U-Boot before 2026.10-rc5 contains out-of-bounds memory access in dhcp6parseoptions that fails to validate SERVERID and CLIENTID option lengths from DHCPv6 packets. Attackers on the local network can send crafted DHCPv6 ADVERTISE or REPLY packets during netboot to corrupt memory and crash the...

CVE-2026-74221 U-Boot before 2026.10-rc5 Buffer Overflow via NFS READLINK

U-Boot before 2026.10-rc5 contains a buffer overflow in nfsreadlinkreply 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...

CVE-2026-74222 U-Boot before 2026.10-rc5 Use-After-Free in lwIP wget Receive Callback

U-Boot before 2026.10-rc5 contains a use-after-free vulnerability in the httpcrecvcb function within the lwIP wget implementation. When HTTP data storage fails, the callback frees the connection PCB but returns ERRBUF instead of ERRABRT, causing the TCP input path to access released memory and...

CVE-2026-74221

U-Boot before 2026.10-rc5 contains a buffer overflow in nfsreadlinkreply 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...

CVE-2026-74221

Versions of U-Boot prior to 2026.10-rc5 are susceptible to a buffer overflow in the nfs_readlink_reply() function located in net/nfs-common.c. The vulnerability occurs when the bootloader processes responses from an NFS server that provides crafted READLINK replies containing negative or oversize...

CVE-2026-74222 U-Boot before 2026.10-rc5 Use-After-Free in lwIP wget Receive Callback

U-Boot before 2026.10-rc5 contains a use-after-free vulnerability in the httpcrecvcb function within the lwIP wget implementation. When HTTP data storage fails, the callback frees the connection PCB but returns ERRBUF instead of ERRABRT, causing the TCP input path to access released memory and...

CVE-2026-74222

U-Boot before 2026.10-rc5 contains a use-after-free vulnerability in the httpcrecvcb function within the lwIP wget implementation. When HTTP data storage fails, the callback frees the connection PCB but returns ERRBUF instead of ERRABRT, causing the TCP input path to access released memory and...

CVE-2026-74222

U-Boot versions before 2026.10-rc5 are vulnerable to a use-after-free flaw in the httpc_recv_cb() function of the lwIP wget implementation. The vulnerability occurs when HTTP data storage fails: the callback frees the connection PCB but incorrectly returns ERR_BUF instead of ERR_ABRT. This error ...

CVE-2026-74221 U-Boot before 2026.10-rc5 Buffer Overflow via NFS READLINK

U-Boot before 2026.10-rc5 contains a buffer overflow in nfsreadlinkreply 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...

CVE-2026-74220 U-Boot before 2026.10-rc5 Buffer Overflow via NFS READ Reply

U-Boot before 2026.10-rc5 contains a buffer overflow in nfsreadreply function in net/nfs-common.c that allows attackers to corrupt memory by supplying crafted NFS READ reply lengths. A malicious NFS server can exploit signed integer handling to bypass length validation and write far past the...

CVE-2026-74220 U-Boot before 2026.10-rc5 Buffer Overflow via NFS READ Reply

U-Boot before 2026.10-rc5 contains a buffer overflow in nfsreadreply function in net/nfs-common.c that allows attackers to corrupt memory by supplying crafted NFS READ reply lengths. A malicious NFS server can exploit signed integer handling to bypass length validation and write far past the...

CVE-2026-74220

U-Boot versions prior to 2026.10-rc5 are vulnerable to a buffer overflow within the nfs_read_reply() function located in net/nfs-common.c. The flaw stems from improper signed integer handling , which allows a malicious NFS server to provide crafted NFS READ reply lengths that bypass validation. T...

CVE-2026-74220

U-Boot before 2026.10-rc5 contains a buffer overflow in nfsreadreply function in net/nfs-common.c that allows attackers to corrupt memory by supplying crafted NFS READ reply lengths. A malicious NFS server can exploit signed integer handling to bypass length validation and write far past the...

CVE-2026-74220 U-Boot before 2026.10-rc5 Buffer Overflow via NFS READ Reply

U-Boot before 2026.10-rc5 contains a buffer overflow in nfsreadreply function in net/nfs-common.c that allows attackers to corrupt memory by supplying crafted NFS READ reply lengths. A malicious NFS server can exploit signed integer handling to bypass length validation and write far past the...