RHEL 10 : freerdp (RHSA-2026:98598)

critical Nessus Plugin ID 379032

Synopsis

The remote Red Hat host is missing one or more security updates.

Description

The remote Redhat Enterprise Linux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:98598 advisory.

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 Fix(es):

* FreeRDP: freerdp-proxy: FreeRDP: Information disclosure via uninitialized heap memory in Save Session Info PDU (CVE-2026-85089)

* FreeRDP: FreeRDP: Arbitrary code execution via oversized channel messages in SHOW_PROTOCOL (CVE-2026-91948)

* FreeRDP: FreeRDP: Denial of Service via crafted Surface Bits command (CVE-2026-91954)

* FreeRDP: FreeRDP: Remote code execution via heap buffer overflow in Server Redirection PDU (CVE-2026-91964)

* FreeRDP: FreeRDP: Information Disclosure via RDPGFX ResetGraphics PDU (CVE-2026-91946)

* freerdp: FreeRDP 3.0.0 through 3.30.0 Protocol Negotiation Bypass (CVE-2026-91949)

* FreeRDP: FreeRDP: Denial of Service via out-of-bounds read in URBDRC channel (CVE-2026-91956)

* FreeRDP: FreeRDP: Denial of Service via out-of-bounds write in urbdrc client channel (CVE-2026-91951)

* FreeRDP: FreeRDP: Remote code execution via uninitialized heap memory disclosure (CVE-2026-91963)

* FreeRDP: FreeRDP: Use-after-free vulnerability in DRDYNVC parser leads to memory corruption (CVE-2026-91947)

* FreeRDP: FreeRDP: Denial of Service due to buffer over-read in RPC gateway (CVE-2026-91959)

* FreeRDP: FreeRDP: Out-of-bounds read leads to denial of service or information disclosure (CVE-2026-91950)

* FreeRDP: FreeRDP: Denial of Service via integer overflow and double free in WinPR (CVE-2026-91960)

* FreeRDP: FreeRDP: Heap buffer overflow via oversized LB_LOAD_BALANCE_INFO routing token can lead to heap corruption. (CVE-2026-91953)

* FreeRDP: FreeRDP: Denial of Service due to out-of-bounds read in smartcard response processing (CVE-2026-91945)

* freerdp: FreeRDP: Denial of Service via uninitialized progressive tile handling (CVE-2026-109242)

* freerdp: FreeRDP 3.0.0-beta1 before 3.32.0 Use-After-Free via Smartcard Connect (CVE-2026-109676)

* freerdp: FreeRDP: Unauthenticated keystroke injection via premature input dispatch (CVE-2026-110838)

* freerdp: freerdp: Denial of Service via file descriptor exhaustion in serial device handling (CVE-2026-110830)

* freerdp: freerdp: Denial of Service via heap-based buffer overflow during MP3 audio decoding (CVE-2026-110837)

* freerdp: freerdp: Denial of Service via unbounded memory consumption during RDPDR reassembly (CVE-2026-110833)

* freerdp: FreeRDP: Denial of Service via grayscale JPEG clipboard conversion (CVE-2026-110839)

* freerdp: freerdp: Denial of Service via memory exhaustion in NLA frame parser (CVE-2026-111378)

* freerdp: FreeRDP: Arbitrary code execution via crafted persistent cache file (CVE-2026-111379)

* freerdp: freerdp: Arbitrary code execution via crafted persistent cache file (CVE-2026-111381)

* freerdp: freerdp: Arbitrary code execution via crafted display frames (CVE-2026-111382)

* freerdp: freerdp: Denial of Service via heap out-of-bounds write in NTLM authentication (CVE-2026-111880)

* freerdp: FreeRDP: heap buffer overflow in server rdpsnd via crafted audio formats (CVE-2026-114045)

* freerdp: FreeRDP: Denial of Service via malformed image clipboard payloads (CVE-2026-121386)

* freerdp: freerdp: Denial of Service via zero-width graphics reset (CVE-2026-121402)

* freerdp: freerdp: Denial of Service via zero-length dynamic virtual channel messages (CVE-2026-121404)

* freerdp: freerdp: Denial of Service via uncontrolled memory allocation in dynamic virtual channels (CVE-2026-121388)

* freerdp: FreeRDP: Denial of Service via assertion failure in RemoteFX decoder (CVE-2026-121394)

Bug Fix(es) and Enhancement(s):

* Rebase FreeRDP to 3.32.2 or newer [rhel-10.3.z] (JIRA:RHEL-277443)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Update the affected packages.

Plugin Details

Severity: Critical

ID: 379032

File Name: redhat-RHSA-2026-98598.nasl

Version: 1.1

Type: Local

Agent: unix

Family: Red Hat Local Security Checks

Published: 11/11/2026

Updated: 11/11/2026

Supported Sensors: Nessus Agent, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 58.58

Vendor

Vendor Severity: Critical

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.1

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:N/A:N

CVSS Score Source: CVE-2026-91963

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.7

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

CVSS Score Source: CVE-2026-110833

CVSS v4

Risk Factor: Critical

Base Score: 9.2

Threat Score: 8.7

Threat Vector: CVSS:4.0/E:P

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:H/SI:L/SA:N

CVSS Score Source: CVE-2026-91949

Vulnerability Information

CPE: cpe:/o:redhat:enterprise_linux:10.3, p-cpe:/a:redhat:enterprise_linux:freerdp-devel, p-cpe:/a:redhat:enterprise_linux:freerdp-libs, p-cpe:/a:redhat:enterprise_linux:freerdp-server, p-cpe:/a:redhat:enterprise_linux:freerdp, p-cpe:/a:redhat:enterprise_linux:libwinpr-devel, p-cpe:/a:redhat:enterprise_linux:libwinpr

Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/cpu

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 11/11/2026

Vulnerability Publication Date: 9/3/2026

Reference Information

CVE: CVE-2026-109242, CVE-2026-109676, CVE-2026-110830, CVE-2026-110833, CVE-2026-110837, CVE-2026-110838, CVE-2026-110839, CVE-2026-111378, CVE-2026-111379, CVE-2026-111381, CVE-2026-111382, CVE-2026-111880, CVE-2026-114045, CVE-2026-121386, CVE-2026-121388, CVE-2026-121394, CVE-2026-121402, CVE-2026-121404, CVE-2026-85089, CVE-2026-91945, CVE-2026-91946, CVE-2026-91947, CVE-2026-91948, CVE-2026-91949, CVE-2026-91950, CVE-2026-91951, CVE-2026-91953, CVE-2026-91954, CVE-2026-91956, CVE-2026-91959, CVE-2026-91960, CVE-2026-91963, CVE-2026-91964

CWE: 120, 122, 124, 125, 190, 248, 306, 358, 400, 416, 476, 617, 770, 787, 824, 825, 835, 908

RHSA: 2026:98598

Detections

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