CVE-2026-110838

FreeRDP shadow server from 3.0.0 before 3.32.0 dispatches input PDUs during the Confirm Active state before authentication, allowing unauthenticated attackers to inject keyboard input. Attackers can negotiate TLS-only RDP and send an input PDU without Confirm Active to inject synthetic keystrokes...

PT-2026-114152

Name of the Vulnerable Software and Affected Versions FreeRDP versions 3.0.0 through 3.31.0 Description The shadow server dispatches input Protocol Data Units PDUs during the Confirm Active state before authentication is completed. This allows unauthenticated attackers to inject synthetic keyboar...

CVE-2026-110838: Missing Authentication for Critical Function

FreeRDP shadow server from 3.0.0 before 3.32.0 dispatches input PDUs during the Confirm Active state before authentication, allowing unauthenticated attackers to inject keyboard input. Attackers can negotiate TLS-only RDP and send an input PDU without Confirm Active to inject synthetic keystrokes...

CVE-2026-88834 Busybox: busybox: httpd user existence oracle in non-default shadow-disabled builds

A flaw was found in BusyBox's httpd web server. When configured with system password authentication, a user existence oracle may exist in certain build configurations. An attacker could distinguish existing from non-existing usernames by observing authentication failure behavior. Impact is limite...

CVE-2026-88834 Busybox: busybox: httpd user existence oracle in non-default shadow-disabled builds

A flaw was found in BusyBox's httpd web server. When configured with system password authentication, a user existence oracle may exist in certain build configurations. An attacker could distinguish existing from non-existing usernames by observing authentication failure behavior. Impact is limite...

CVE-2026-88834

A flaw in BusyBox's httpd web server allows for a user existence oracle when configured with system password authentication. In certain build configurations, an attacker can distinguish between existing and non-existing usernames by observing authentication failure behaviors. The impact is limite...

SUSE CVE-2026-109246

FreeRDP before 3.32.0 contains a divide-by-zero vulnerability in the freerdp-shadow-cli shadow server: the frame id in a client's Frame Acknowledge PDU is stored without a range check, so the in-flight frame count in shadowencoderinflightframes can underflow. An authenticated client can acknowled...

CVE-2026-109246

A flaw was found in FreeRDP. An authenticated client can trigger a Denial of Service DoS by sending a specially crafted frame acknowledgment message to the shadow server. Due to missing input validation on the frame identifier, an arithmetic error causes a divide-by-zero condition. This terminate...

DEBIAN-CVE-2026-109246

FreeRDP before 3.32.0 contains a divide-by-zero vulnerability in the freerdp-shadow-cli shadow server: the frame id in a client's Frame Acknowledge PDU is stored without a range check, so the in-flight frame count in shadowencoderinflightframes can underflow. An authenticated client can acknowled...

CVE-2026-109246

FreeRDP before 3.32.0 contains a divide-by-zero vulnerability in the freerdp-shadow-cli shadow server: the frame id in a client's Frame Acknowledge PDU is stored without a range check, so the in-flight frame count in shadowencoderinflightframes can underflow. An authenticated client can acknowled...

CVE-2026-109246

FreeRDP before 3.32.0 contains a divide-by-zero vulnerability in the freerdp-shadow-cli shadow server: the frame id in a client's Frame Acknowledge PDU is stored without a range check, so the in-flight frame count in shadowencoderinflightframes can underflow. An authenticated client can acknowled...

UBUNTU-CVE-2026-109246

FreeRDP before 3.32.0 contains a divide-by-zero vulnerability in the freerdp-shadow-cli shadow server: the frame id in a client's Frame Acknowledge PDU is stored without a range check, so the in-flight frame count in shadowencoderinflightframes can underflow. An authenticated client can acknowled...

CVE-2026-109246

FreeRDP versions prior to 3.32.0 are vulnerable to a divide-by-zero flaw within the freerdp-shadow-cli shadow server. The root cause is a missing range check on the frame ID received in a client's Frame Acknowledge PDU , which allows the in-flight frame count in shadow_encoder_inflight_frames() t...

EUVD-2026-97690

FreeRDP before 3.32.0 contains a divide-by-zero vulnerability in the freerdp-shadow-cli shadow server: the frame id in a client's Frame Acknowledge PDU is stored without a range check, so the in-flight frame count in shadowencoderinflightframes can underflow. An authenticated client can acknowled...

CVE-2026-109246 FreeRDP before 3.32.0 Shadow Server Divide-by-Zero via Frame Acknowledge PDU

FreeRDP before 3.32.0 contains a divide-by-zero vulnerability in the freerdp-shadow-cli shadow server: the frame id in a client's Frame Acknowledge PDU is stored without a range check, so the in-flight frame count in shadowencoderinflightframes can underflow. An authenticated client can acknowled...

CVE-2026-109246

FreeRDP before 3.32.0 contains a divide-by-zero vulnerability in the freerdp-shadow-cli shadow server: the frame id in a client's Frame Acknowledge PDU is stored without a range check, so the in-flight frame count in shadowencoderinflightframes can underflow. An authenticated client can acknowled...

CVE-2026-109246 FreeRDP before 3.32.0 Shadow Server Divide-by-Zero via Frame Acknowledge PDU

FreeRDP before 3.32.0 contains a divide-by-zero vulnerability in the freerdp-shadow-cli shadow server: the frame id in a client's Frame Acknowledge PDU is stored without a range check, so the in-flight frame count in shadowencoderinflightframes can underflow. An authenticated client can acknowled...

CVE-2026-109246 FreeRDP before 3.32.0 Shadow Server Divide-by-Zero via Frame Acknowledge PDU

FreeRDP before 3.32.0 contains a divide-by-zero vulnerability in the freerdp-shadow-cli shadow server: the frame id in a client's Frame Acknowledge PDU is stored without a range check, so the in-flight frame count in shadowencoderinflightframes can underflow. An authenticated client can acknowled...

CVE-2026-109246

FreeRDP before 3.32.0 contains a divide-by-zero vulnerability in the freerdp-shadow-cli shadow server: the frame id in a client's Frame Acknowledge PDU is stored without a range check, so the in-flight frame count in shadowencoderinflightframes can underflow. An authenticated client can acknowled...

PT-2026-110663

Name of the Vulnerable Software and Affected Versions FreeRDP versions prior to 3.32.0 Description The freerdp-shadow-cli shadow server fails to perform a range check on the frame id within a client's Frame Acknowledge PDU. This allows the in-flight frame count in the shadow encoder inflight fram...