Detections
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Linux Distros Unpatched Vulnerability : CVE-2026-25955
high Nessus Plugin ID 300148
Synopsis
The Linux/Unix host has one or more packages installed with a vulnerability that the vendor indicates will not be patched.Description
The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.- Debian Linux - freerdp2 - FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.23.0, `xf_AppUpdateWindowFromSurface` reuses a cached `XImage` whose `data` pointer references a freed RDPGFX surface buffer, because `gdi_DeleteSurface` frees `surface->data` without invalidating the `appWindow->image` that aliases it. Version 3.23.0 fixes the issue. freerdp3 - FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.23.0, `xf_AppUpdateWindowFromSurface` reuses a cached `XImage` whose `data` pointer references a freed RDPGFX surface buffer, because `gdi_DeleteSurface` frees `surface->data` without invalidating the `appWindow->image` that aliases it.
Version 3.23.0 fixes the issue. Red Hat Enterprise Linux - freerdp: FreeRDP: Denial of Service via use- after-free in xf_AppUpdateWindowFromSurface Ubuntu Linux - FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.23.0, `xf_AppUpdateWindowFromSurface` reuses a cached `XImage` whose `data` pointer references a freed RDPGFX surface buffer, because `gdi_DeleteSurface` frees `surface->data` without invalidating the `appWindow->image` that aliases it. Version 3.23.0 fixes the issue.
(CVE-2026-25955)
Note that Nessus relies on the presence of the package as reported by the vendor.
Solution
There is no known solution at this time.See Also
https://access.redhat.com/security/cve/cve-2026-25955
Plugin Details
Severity: High
ID: 300148
File Name: unpatched_CVE_2026_25955.nasl
Version: 1.1
Type: local
Agent: unix
Family: Misc.
Published: 3/1/2026
Updated: 3/1/2026
Supported Sensors: Nessus Agent, Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 5.9
CVSS v2
Risk Factor: Medium
Base Score: 6.4
Temporal Score: 5.4
Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:P
CVSS Score Source: CVE-2026-25955
CVSS v3
Risk Factor: High
Base Score: 8.1
Temporal Score: 7.4
Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
Temporal Vector: CVSS:3.0/E:U/RL:U/RC:C
Vulnerability Information
CPE: p-cpe:/a:redhat:enterprise_linux:freerdp, p-cpe:/a:centos:centos:freerdp-plugins, cpe:/o:centos:centos:8, cpe:/o:canonical:ubuntu_linux:16.04:-:lts, cpe:/o:canonical:ubuntu_linux:22.04:-:lts, cpe:/o:canonical:ubuntu_linux:24.04:-:lts, cpe:/o:centos:centos:7, cpe:/o:redhat:enterprise_linux:8, cpe:/o:redhat:enterprise_linux:10, p-cpe:/a:canonical:ubuntu_linux:freerdp, p-cpe:/a:centos:centos:freerdp-server, p-cpe:/a:centos:centos:libwinpr-devel, cpe:/o:debian:debian_linux:11.0, p-cpe:/a:redhat:enterprise_linux:libwinpr-devel, p-cpe:/a:canonical:ubuntu_linux:freerdp3, cpe:/o:canonical:ubuntu_linux:25.10, cpe:/o:debian:debian_linux:13.0, p-cpe:/a:redhat:enterprise_linux:freerdp-plugins, cpe:/o:redhat:enterprise_linux:9, p-cpe:/a:centos:centos:freerdp, p-cpe:/a:debian:debian_linux:freerdp2, p-cpe:/a:debian:debian_linux:freerdp3, p-cpe:/a:centos:centos:freerdp-libs, cpe:/o:canonical:ubuntu_linux:18.04:-:lts, cpe:/o:redhat:enterprise_linux:7, p-cpe:/a:redhat:enterprise_linux:freerdp-devel, p-cpe:/a:redhat:enterprise_linux:freerdp-server, p-cpe:/a:redhat:enterprise_linux:freerdp-libs, p-cpe:/a:canonical:ubuntu_linux:freerdp2, p-cpe:/a:centos:centos:libwinpr, p-cpe:/a:centos:centos:freerdp-devel, cpe:/o:canonical:ubuntu_linux:20.04:-:lts, cpe:/o:redhat:enterprise_linux:6, cpe:/o:debian:debian_linux:12.0, p-cpe:/a:redhat:enterprise_linux:libwinpr
Required KB Items: Host/cpu, Host/local_checks_enabled, global_settings/vendor_unpatched, Host/OS/identifier
Exploit Ease: No known exploits are available
Reference Information
CVE: CVE-2026-25955