CVE-2026-55991 Remote DNS-over-QUIC (DoQ) flow-control assertion failure in libngtcp2

In NLnet Labs Unbound 1.22.0 up to and including 1.25.1, a remote unauthenticated client can trigger a libngtcp2 assertion if compiled with assertions on and terminate the entire Unbound process using a single DNS-over-QUIC DoQ connection and one normal DNS query. This is caused by an erroneous...

CVE-2026-55991 Remote DNS-over-QUIC (DoQ) flow-control assertion failure in libngtcp2

In NLnet Labs Unbound 1.22.0 up to and including 1.25.1, a remote unauthenticated client can trigger a libngtcp2 assertion if compiled with assertions on and terminate the entire Unbound process using a single DNS-over-QUIC DoQ connection and one normal DNS query. This is caused by an erroneous...

CVE-2026-63797 rpmsg: char: Fix use-after-free on probe error path

In the Linux kernel, the following vulnerability has been resolved: rpmsg: char: Fix use-after-free on probe error path rpmsgchrdevprobe stores the newly allocated eptdev in the default endpoint's priv pointer before calling rpmsgchrdeveptdevadd. If rpmsgchrdeveptdevadd then fails, its error path...

CVE-2026-63797

The CVE-2026-63797 fix addresses a use-after-free in the Linux kernel rpmsg character device path. If rpmsg_chrdev_eptdev_add() fails after rpmsg_chrdev_probe() stores the new eptdev in the default endpoint’s priv pointer, the eptdev may be freed while callbacks still access the stale priv. The p...

CVE-2026-59173 Apache Traffic Server: DoS vulnerability in HTTP/2 via stalled flow-control conditions

Uncontrolled Resource Consumption vulnerability in Apache Traffic Server. This issue affects Apache Traffic Server: from 9.0.0 through 9.1.13, from 10.0.0 through 10.1.2. Users are recommended to upgrade to version 9.1.14 or 10.1.3, which fixes the issue...

CVE-2026-59173

CVE-2026-59173 is an Uncontrolled Resource Consumption (DoS) vulnerability in Apache Traffic Server. Affected: versions 9.0.0–9.1.13 and 10.0.0–10.1.2. Root cause and impact: unresolved resource exhaustion potentially affecting service availability. Remediation: upgrade to 9.1.14 or 10.1.3, which...

CVE-2026-59173 Apache Traffic Server: DoS vulnerability in HTTP/2 via stalled flow-control conditions

Uncontrolled Resource Consumption vulnerability in Apache Traffic Server. This issue affects Apache Traffic Server: from 9.0.0 through 9.1.13, from 10.0.0 through 10.1.2. Users are recommended to upgrade to version 9.1.14 or 10.1.3, which fixes the issue...

Linux Distros Unpatched Vulnerability : CVE-2026-59173

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Uncontrolled Resource Consumption vulnerability in Apache Traffic Server. This issue affects Apache Traffic Server: from 9.0.0 through 9.1.13, from 10.0.0 throu...

Denial-of-service vulnerability in HTTP/2 servers via stalled flow-control conditions

Overview A denial-of-service DoS vulnerability exists in some HTTP/2 server implementations that fail to adequately limit resource consumption when buffering response data under stalled flow-control conditions. A remote, unauthenticated attacker can trigger memory exhaustion and service...

httpd: httpd: HTTP/2 Remote Denial of Service via compression bomb and Slowloris-style attack

A flaw was found in HTTP/2, affecting various web servers. A remote attacker can exploit this vulnerability by combining an HPACK compression bomb with a zero-byte flow-control window. This technique allows a small amount of data to expand into large memory allocations on the server, which are th...

pppoe: drop PFC frames

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CVE-2026-10642

The Zephyr PL011 UART driver drivers/serial/uartpl011.c contains an unbounded software loop in pl011irqtxenable that repeatedly invokes the interrupt-driven application callback while the TX interrupt mask bit PL011IMSCTXIM is set, to work around the controller's level-transition TX-interrupt...

CVE-2026-10642 Unbounded TX busy-loop DoS in Zephyr PL011 UART driver under CTS hardware flow control

The Zephyr PL011 UART driver drivers/serial/uartpl011.c contains an unbounded software loop in pl011irqtxenable that repeatedly invokes the interrupt-driven application callback while the TX interrupt mask bit PL011IMSCTXIM is set, to work around the controller's level-transition TX-interrupt...

CVE-2026-10642

The Zephyr PL011 UART driver drivers/serial/uartpl011.c contains an unbounded software loop in pl011irqtxenable that repeatedly invokes the interrupt-driven application callback while the TX interrupt mask bit PL011IMSCTXIM is set, to work around the controller's level-transition TX-interrupt...

CVE-2026-10642 Unbounded TX busy-loop DoS in Zephyr PL011 UART driver under CTS hardware flow control

The Zephyr PL011 UART driver drivers/serial/uartpl011.c contains an unbounded software loop in pl011irqtxenable that repeatedly invokes the interrupt-driven application callback while the TX interrupt mask bit PL011IMSCTXIM is set, to work around the controller's level-transition TX-interrupt...

CVE-2026-10642

The CVE-2026-10642 issue affects the Zephyr PL011 UART driver (drivers/serial/uart_pl011.c) where pl011_irq_tx_enable() can spin in an unbounded loop when CTS hardware flow control is enabled and CTS is de-asserted by the peer. This causes the TX interrupt to remain masked and the controller to s...

CVE-2026-10642 Unbounded TX busy-loop DoS in Zephyr PL011 UART driver under CTS hardware flow control

The Zephyr PL011 UART driver drivers/serial/uartpl011.c contains an unbounded software loop in pl011irqtxenable that repeatedly invokes the interrupt-driven application callback while the TX interrupt mask bit PL011IMSCTXIM is set, to work around the controller's level-transition TX-interrupt...

PT-2026-52101

Name of the Vulnerable Software and Affected Versions Zephyr versions 4.1.0 through 4.4.0 Description The PL011 UART driver in drivers/serial/uart pl011.c contains an unbounded software loop within the pl011 irq tx enable function. This loop repeatedly invokes the interrupt-driven application...

httpd: httpd: HTTP/2 Remote Denial of Service via compression bomb and Slowloris-style attack

A flaw was found in HTTP/2, affecting various web servers. A remote attacker can exploit this vulnerability by combining an HPACK compression bomb with a zero-byte flow-control window. This technique allows a small amount of data to expand into large memory allocations on the server, which are th...

httpd: httpd: HTTP/2 Remote Denial of Service via compression bomb and Slowloris-style attack

A flaw was found in HTTP/2, affecting various web servers. A remote attacker can exploit this vulnerability by combining an HPACK compression bomb with a zero-byte flow-control window. This technique allows a small amount of data to expand into large memory allocations on the server, which are th...