CVE-2026-5067

A remote, unauthenticated attacker can trigger memory corruption in Zephyr's HTTP server WebSocket upgrade path by sending a crafted Sec-WebSocket-Key header. The HTTP/1 header parser copies the header into a fixed-size buffer using a bounded copy that does not guarantee NUL termination when the...

CVE-2026-5067

A remote, unauthenticated attacker can trigger memory corruption in Zephyr's HTTP server WebSocket upgrade path by sending a crafted Sec-WebSocket-Key header. The HTTP/1 header parser copies the header into a fixed-size buffer using a bounded copy that does not guarantee NUL termination when the...

EUVD-2026-35348

A remote, unauthenticated attacker can trigger memory corruption in Zephyr's HTTP server WebSocket upgrade path by sending a crafted Sec-WebSocket-Key header. The HTTP/1 header parser copies the header into a fixed-size buffer using a bounded copy that does not guarantee NUL termination when the...

CVE-2026-5067 Out-of-bounds read/write in HTTP WebSocket upgrade via non-null-terminated Sec-WebSocket-Key

A remote, unauthenticated attacker can trigger memory corruption in Zephyr's HTTP server WebSocket upgrade path by sending a crafted Sec-WebSocket-Key header. The HTTP/1 header parser copies the header into a fixed-size buffer using a bounded copy that does not guarantee NUL termination when the...

CVE-2026-5067 Out-of-bounds read/write in HTTP WebSocket upgrade via non-null-terminated Sec-WebSocket-Key

A remote, unauthenticated attacker can trigger memory corruption in Zephyr's HTTP server WebSocket upgrade path by sending a crafted Sec-WebSocket-Key header. The HTTP/1 header parser copies the header into a fixed-size buffer using a bounded copy that does not guarantee NUL termination when the...

CVE-2026-5067

The CVE targets Zephyr’s HTTP server WebSocket upgrade path (CONFIG_HTTP_SERVER_WEBSOCKET enabled). A crafted Sec-WebSocket-Key header can trigger memory corruption via a non-NUL-terminated copy into a fixed-size buffer, followed by copying to a local stack buffer and using strlen(). If no NUL ex...

PT-2026-47689

A remote, unauthenticated attacker can trigger memory corruption in Zephyr's HTTP server WebSocket upgrade path by sending a crafted Sec-WebSocket-Key header. The HTTP/1 header parser copies the header into a fixed-size buffer using a bounded copy that does not guarantee NUL termination when the...

CVE-2026-1677

Zephyr sockets created with IPPROTOTLS13 can still negotiate a TLS 1.2 connection when both TLS versions are enabled in Kconfig, because the socket-level protocol selection is not propagated to mbedTLS e.g. via mbedtlssslconfmintlsversion. The ClientHello advertises both versions and the peer can...

Zephyr 安全漏洞

Zephyr is an open-source, scalable real-time operating system RTOS developed by Zephyr. There is a security vulnerability in Zephyr, which stems from the use of NETASSERT for verifying buffer length only in the zcansendtoctx function. Disabling this feature in production builds may lead to...

CVE-2026-5072

A bitwise shift vulnerability in Zephyr's PTP subsystem allows a remote attacker to cause undefined behavior and potential system crashes. An attacker sends a crafted PTPMSGMANAGEMENT message to set an unvalidated negative logannounceinterval value in the port's data set. When a subsequent...

CVE-2026-5072

A bitwise shift vulnerability in Zephyr's PTP subsystem allows a remote attacker to cause undefined behavior and potential system crashes. An attacker sends a crafted PTPMSGMANAGEMENT message to set an unvalidated negative logannounceinterval value in the port's data set. When a subsequent...

CVE-2026-5072 ptp: Potential Denial of Service via PTP Interval Shift

A bitwise shift vulnerability in Zephyr's PTP subsystem allows a remote attacker to cause undefined behavior and potential system crashes. An attacker sends a crafted PTPMSGMANAGEMENT message to set an unvalidated negative logannounceinterval value in the port's data set. When a subsequent...

EUVD-2026-31413

A bitwise shift vulnerability in Zephyr's PTP subsystem allows a remote attacker to cause undefined behavior and potential system crashes. An attacker sends a crafted PTPMSGMANAGEMENT message to set an unvalidated negative logannounceinterval value in the port's data set. When a subsequent...

CVE-2026-5072 ptp: Potential Denial of Service via PTP Interval Shift

A bitwise shift vulnerability in Zephyr's PTP subsystem allows a remote attacker to cause undefined behavior and potential system crashes. An attacker sends a crafted PTPMSGMANAGEMENT message to set an unvalidated negative logannounceinterval value in the port's data set. When a subsequent...

CVE-2026-5072

CVE-2026-5072 affects Zephyr’s PTP subsystem. A remote attacker can send a crafted PTP_MSG_MANAGEMENT to set an unvalidated negative log_announce_interval in a port’s data set. When a subsequent PTP_MSG_ANNOUNCE is processed, port_timer_set_timeout_random computes timeout as NSEC_PER_SEC >>...

Zephyr 安全漏洞

Zephyr is an open-source, scalable real-time operating system RTOS developed by Zephyr. There is a security vulnerability in Zephyr, caused by a bit offset issue. A remote attacker can set an unvalidated negative value of logannounceinterval by sending a specially crafted PTPMSGMANAGEMENT message...

PT-2026-42731

A bitwise shift vulnerability in Zephyr's PTP subsystem allows a remote attacker to cause undefined behavior and potential system crashes. An attacker sends a crafted PTP MSG MANAGEMENT message to set an unvalidated negative log announce interval value in the port's data set. When a subsequent PT...

Zephyr 安全漏洞

Zephyr is an open-source, scalable real-time operating system RTOS developed by Zephyr. There is a security vulnerability in Zephyr, which occurs when sending ICMP ping messages to the device’s own IPv4 address using the net ping shell command. This causes the network stack to recursively re-ente...

CVE-2026-1677

Zephyr sockets created with IPPROTOTLS13 can still negotiate a TLS 1.2 connection when both TLS versions are enabled in Kconfig, because the socket-level protocol selection is not propagated to mbedTLS e.g. via mbedtlssslconfmintlsversion. The ClientHello advertises both versions and the peer can...

CVE-2026-1677

CVE-2026-1677 concerns Zephyr: sockets created with IPPROTO_TLS_1_3 may still negotiate TLS 1.2 when both TLS versions are enabled, because socket‑level protocol selection isn’t propagated to mbedTLS (e.g., via mbedtls_ssl_conf_min_tls_version). The ClientHello can advertise both TLS 1.2 and TLS ...