https://cve.radiocsirt.org/rss/recent/all/10 Most recent entries from all 2026-10-04T02:22:31.075322+00:00 Vulnerability-Lookup csirt@opendfir.org python-feedgen Contains only the most 10 recent entries. https://cve.radiocsirt.org/vuln/euvd-2026-336692 EUVD-2026-336692 2026-10-04T02:22:31.078393+00:00 EUVD-2026-336692 https://cve.radiocsirt.org/vuln/fkie_cve-2026-29008 fkie_cve-2026-29008 2026-10-04T02:22:31.078424+00:00

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 payload_len to become negative. When the TCP_SYN_SENT handler calls tcp_rx_user_data() without invoking tcp_seg_in_wnd() validation, the negative payload_len is implicitly converted to a large unsigned integer (e.g., 0xFFFFFFD8) and passed to memcpy() in store_block(), causing an immediate crash that prevents device boot and may enable memory corruption when CONFIG_LMB is disabled.

 https://cve.radiocsirt.org/vuln/ghsa-3qwj-q697-4ppr GHSA-3qwj-q697-4ppr 2026-10-04T02:22:31.078457+00:00

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 payload_len to become negative. When the TCP_SYN_SENT handler calls tcp_rx_user_data() without invoking tcp_seg_in_wnd() validation, the negative payload_len is implicitly converted to a large unsigned integer (e.g., 0xFFFFFFD8) and passed to memcpy() in store_block(), causing an immediate crash that prevents device boot and may enable memory corruption when CONFIG_LMB is disabled.

 https://cve.radiocsirt.org/vuln/ubuntu-cve-2026-29008 UBUNTU-CVE-2026-29008 2026-10-04T02:22:31.078476+00:00

Affected: Ubuntu:16.04:LTS: u-boot, Ubuntu:18.04:LTS: u-boot, Ubuntu:20.04:LTS: u-boot, Ubuntu:22.04:LTS: u-boot, Ubuntu:22.04:LTS: u-boot-nezha, Ubuntu:24.04:LTS: u-boot, Ubuntu:24.04:LTS: u-boot-nezha, Ubuntu:25.10: u-boot, Ubuntu:26.04:LTS: u-boot

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 payload_len to become negative. When the TCP_SYN_SENT handler calls tcp_rx_user_data() without invoking tcp_seg_in_wnd() validation, the negative payload_len is implicitly converted to a large unsigned integer (e.g., 0xFFFFFFD8) and passed to memcpy() in store_block(), causing an immediate crash that prevents device boot and may enable memory corruption when CONFIG_LMB is disabled.

 https://cve.radiocsirt.org/vuln/wid-sec-w-2026-2306 WID-SEC-W-2026-2306 — DENX U-Boot: Mehrere Schwachstellen 2026-10-04T02:22:31.078510+00:00

Ein Angreifer aus einem angrenzenden Netzwerk kann mehrere Schwachstellen in DENX U-Boot ausnutzen, um einen Denial of Service Angriff durchzuführen und beliebigen Code auszuführen.