FreeRDP 安全漏洞

FreeRDP is an open-source implementation of the Remote Desktop Protocol RDP by the FreeRDP team. Versions of FreeRDP prior to 3.26.0 contained security vulnerabilities. These vulnerabilities stemmed from malicious RDP servers that could trigger a client heap buffer overflow by sending specially...

RLSA-2026:19358 Moderate: freerdp security update

FreeRDP is a free implementation of the Remote Desktop Protocol RDP, released under the Apache license. The xfreerdp client can connect to RDP servers such as Microsoft Windows machines, xrdp, and VirtualBox. Security Fixes: freerdp: FreeRDP: Denial of service due to use-after-free vulnerability...

CVE-2026-48792

The connected sources confirm a vulnerability in pam_usb for Linux prior to 0.9.1: evdev.c silently ignores EACCES when opening /dev/input/event* nodes, causing pusb_has_virtual_input_device() to incorrectly report no virtual devices even if opens fail due to insufficient permissions. As a result...

CVE-2026-48792 pam_usb: pusb_has_virtual_input_device() silently discards EACCES, disabling remote desktop detection under non-root execution

pamusb provides hardware authentication for Linux using ordinary removable media. Prior to 0.9.1, src/evdev.c silently ignores EACCES errors when opening /dev/input/event nodes, causing pusbhasvirtualinputdevice to return 0 no virtual devices found even when every open call failed due to...

CVE-2026-48792 pam_usb: pusb_has_virtual_input_device() silently discards EACCES, disabling remote desktop detection under non-root execution

pamusb provides hardware authentication for Linux using ordinary removable media. Prior to 0.9.1, src/evdev.c silently ignores EACCES errors when opening /dev/input/event nodes, causing pusbhasvirtualinputdevice to return 0 no virtual devices found even when every open call failed due to...

CVE-2026-40033

FreeRDP before 3.26.0 contains a heap-buffer-overflow vulnerability in gdiCacheToSurface that allows remote attackers to write out-of-bounds heap memory. The vulnerability occurs because rectangle validation clamps coordinates to UINT16MAX but performs copy operations using unclamped cache entry...

CVE-2026-40033

FreeRDP before 3.26.0 contains a heap-buffer-overflow vulnerability in gdiCacheToSurface that allows remote attackers to write out-of-bounds heap memory. The vulnerability occurs because rectangle validation clamps coordinates to UINT16MAX but performs copy operations using unclamped cache entry...

wireshark: Heap-based Buffer Overflow in Wireshark

A flaw was found in the RDP protocol dissector in Wireshark. This issue occurs when malformed packets are decoded from a pcap file or the network, causing a heap-based buffer overflow, resulting in a denial of service or potentially in code execution...

Moderate: Red Hat Security Advisory: freerdp security update

An update for freerdp is now available for Red Hat Enterprise Linux 10.0 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for...

freerdp: FreeRDP: Denial of Service via double free vulnerability during disconnect

A flaw was found in FreeRDP, a free implementation of the Remote Desktop Protocol. This double free vulnerability occurs during the cleanup process when a remote desktop session disconnects. Specifically, if a title allocation fails, a pointer to an application window is freed but not removed fro...

freerdp: FreeRDP: Denial of Service via endless blocking loop in Stream_EnsureCapacity

A flaw was found in FreeRDP, a free implementation of the Remote Desktop Protocol. The StreamEnsureCapacity function can create an endless blocking loop, leading to a Denial of Service DoS. This vulnerability can be exploited on 32-bit systems where the available physical memory is greater than o...

freerdp: FreeRDP has a division-by-zero in ADPCM decoders when `nBlockAlign` is 0

A division by zero flaw has been discovered in FreeRDP. This division by zero exists in the MS-ADPCM and IMA-ADPCM decoders when nBlockAlign is 0, leading to a crash. In libfreerdp/codec/dsp.c, both ADPCM decoders use size % blocksize where blocksize = context-common.format.nBlockAlign. The...

FreeRDP: FreeRDP: Information disclosure via heap memory out of bounds read

A flaw was found in FreeRDP, a free implementation of the Remote Desktop Protocol. A remote attacker could exploit a vulnerability where pixel data from adjacent heap memory is rendered to the screen. This can lead to the disclosure of sensitive data to the attacker...

TencentOS Server 3: freerdp (TSSA-2026:0388)

The version of Tencent Linux installed on the remote TencentOS Server 3 host is prior to tested version. It is, therefore, affected by multiple vulnerabilities as referenced in the TSSA-2026:0388 advisory. Package updates are available for TencentOS Server 3 that fix the following vulnerabilities...

Alibaba Cloud Linux 3 : 0116: freerdp (ALINUX3-SA-2026:0116)

The remote Alibaba Cloud Linux 3 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALINUX3-SA-2026:0116 advisory. Package updates are available for Alibaba Cloud Linux 3 that fix the following vulnerabilities: CVE-2026-25952: FreeRDP is a free...

OESA-2026-2441 freerdp security update

FreeRDP is a client implementation of the Remote Desktop Protocol RDP that follows Microsoft's open specifications. This package provides the client applications xfreerdp. Security Fixes: A malicious server can trigger a client-side global buffer overflow, causing a crash denial of...

Astra Linux – Vulnerability in freerdp2

FreeRDP is a free implementation of the Remote Desktop Protocol. Clients that use FreeRDP versions prior to 3.5.0 or 2.11.6 and have connections to servers using the NSC codec are vulnerable to integer underflow. Versions 3.5.0 and 2.11.6 address this issue. As a workaround, do not use the NSC...

Astra Linux – Vulnerability in freerdp2

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.5.1, a malicious server could crash the FreeRDP client by sending invalid huge allocation sizes. Version 3.5.1 includes a patch for this issue. There are no known workaround solutions available...

Astra Linux – Vulnerability in xrdp

xrdp is an open-source project that provides a graphical login to remote machines using the Microsoft Remote Desktop Protocol RDP. xrdp versions prior to 0.9.21 contain an integer overflow in the xrdpmmprocessrailupdatewindowtext function. There are no known solutions to this issue. Users are...

Astra Linux – Vulnerability in freerdp2

FreeRDP is a free implementation of the Remote Desktop Protocol. Clients and servers that use versions of FreeRDP prior to 3.5.0 or 2.11.6 are vulnerable to out-of-bounds read vulnerabilities. Versions 3.5.0 and 2.11.6 address this issue. There are no known workarounds available...