PT-2026-110657

Name of the Vulnerable Software and Affected Versions FreeRDP versions 3.11.0 through 3.32.0 Description A reachable assertion issue exists in the urb isoch transfer function. A malicious RDP server can cause the client to crash by sending unvalidated OutputBufferSize values. Specifically, an...

CVE-2026-109241: NULL Pointer Dereference

FreeRDP before 3.32.0 contains a NULL pointer dereference vulnerability in the client video redirection channel that allows malicious servers to crash clients by sending out-of-order messages. Attackers can send a Geometry CLEAR message that nulls presentation-geometry, then send VideoData that...

CVE-2026-109242: Use of Uninitialized Resource

FreeRDP before 3.0.0 and 3.6.0 before 3.32.0 renders uninitialized heap memory from un-decoded progressive tiles because the tile-current buffer is allocated without zeroing. A malicious RDP server can send a crafted WBTTILEFIRST then WBTTILEUPGRADE sequence to paint heap bytes onscreen or abort...

CVE-2026-109244: Incorrect Permission Assignment for Critical Resource

FreeRDP from 2.0.0 before 3.32.0 contains an insecure permission vulnerability in winpr-makecert that creates unencrypted private keys without owner-only file modes. Local users on multi-user Unix hosts can read world-readable key files or open PFX files protected by the hard-coded default passwo...

CVE-2026-109245: Improper Certificate Validation

FreeRDP 3.0.0 before 3.32.0 contains an improper certificate validation vulnerability in freerdphttprequest in libfreerdp/utils/http.c that completes TLS handshakes without verifying the server certificate chain. On-path attackers can impersonate login.microsoftonline.com in the Azure AD...

PT-2026-110667

Name of the Vulnerable Software and Affected Versions FreeRDP versions 3.0.0 through 3.31.0 Description A heap buffer overflow occurs in the collect keys function during PKCS11 key enumeration. Local attackers can exploit this by using smartcard tokens that present more than 64 public key objects...

CVE-2026-109246: Integer Underflow (Wrap or Wraparound)

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-2026-109257: Double Free

FreeRDP before 3.32.0 contains a double-free vulnerability in nsccontextinitializeencode that leaves dangling plane pointers after a partial buffer growth failure. Attackers using a crafted RDP client can negotiate NSCodec with a large desktop geometry to trigger allocation failure, crashing the...

CVE-2026-109240: Reachable Assertion

FreeRDP 3.11.0 before 3.32.1 contains a reachable assertion vulnerability in urbisochtransfer that allows malicious RDP servers to crash clients by sending unvalidated OutputBufferSize values. Attackers can send a TSURBISOCHTRANSFER IN-direction request with OutputBufferSize above INT32MAX over...

PT-2026-110660

Name of the Vulnerable Software and Affected Versions FreeRDP versions 3.0.0 through 3.31.0 Description An incorrect permission assignment allows local users to read private keys created by the crypto write pem function that lack owner-only permissions. On multi-user Unix hosts, attackers can...

CVE-2026-109243: Incorrect Permission Assignment for Critical Resource

FreeRDP from 3.0.0 before 3.32.0 contains an incorrect permission assignment vulnerability that allows local users to read private keys written by cryptowritepem without owner-only permissions. Attackers on multi-user Unix hosts can enumerate the shared temporary directory during soft-smartcard...

CVE-2026-109254: Use After Free

FreeRDP 2.1.0 before 3.32.0 contains a use-after-free vulnerability in the static rdpsnd channel disconnect path, which frees audio formats and device without joining playthread. A malicious RDP server can disconnect while asynchronous Wave2 playback processes queued PDUs, causing the client to...

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...

CVE-2026-109253: Out-of-bounds Read

FreeRDP from 3.9.0 before 3.32.0 contains an out-of-bounds read vulnerability in the RDPEAR NDR scalar readers, which check value length before consuming alignment padding. Malicious or compromised RDP servers can send crafted unaligned RDPEAR payloads, such as CreateApReqAuthenticatorReq message...

Rocky Linux 9 [CIQ] Security Update: freerdp / freerdp-debuginfo / freerdp-debugsource / freerdp-devel / etc Multiple Vulnerabilities (crlsa-2026_76755)

The Rocky Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the CIQ crlsa-202676755 advisory. FreeRDP: FreeRDP: Denial of Service via crafted Surface Bits command CVE-2026-91954 FreeRDP: FreeRDP: Remote code execution via heap buffer overflow in...

MiracleLinux 9 : freerdp-2.11.7-7.el9_8.8 (AXSA:2026-2009:32)

The remote MiracleLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the AXSA:2026-2009:32 advisory. FreeRDP: FreeRDP: Denial of Service via crafted Surface Bits command CVE-2026-91954 FreeRDP: FreeRDP: Remote code execution via heap buffer overflow...

AlmaLinux 9 : freerdp (ALSA-2026:76755)

The remote AlmaLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2026:76755 advisory. FreeRDP: FreeRDP: Denial of Service via crafted Surface Bits command CVE-2026-91954 FreeRDP: FreeRDP: Remote code execution via heap buffer overflow in...

RLSA-2026:76755 Important: 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 via crafted Surface Bits command...

freerdp security update

An update is available for freerdp. This update affects Rocky Linux 9. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list FreeRDP is a free implementation of the Remote Desktop Protocol RDP, released...

FreeRDP: FreeRDP: Heap buffer overflow via oversized LB_LOAD_BALANCE_INFO routing token can lead to heap corruption.

A flaw was found in FreeRDP. A malicious RDP Remote Desktop Protocol server or a man-in-the-middle attacker could exploit a heap buffer overflow vulnerability during connection negotiation, prior to authentication. By sending a specially crafted Server Redirection PDU Protocol Data Unit with an...