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CVE-2026-44420

Last refreshed2026-11-04

Status: UPDATED  |  Advisory ID: CVE-2026-44420

Key Details

CVECVE-2026-44420
CVSS Score / Version
8.8 (High) / CVSS v3.1
Updated2026-11-03
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS Prose
attack vector is network; attack complexity is low; privileges required is low; user interaction is none; scope is unchanged; confidentiality impact is high; integrity impact is high; availability impact is high.
Affected products
Red Hat Enterprise Linux 10 and freerdp freerdp
Classified as
CWE-122 (Heap-based Buffer Overflow)

Affected Products, Subsystems & Sectors

VendorProductAffected VersionsPatch Status
Red HatRed Hat Enterprise Linux 10
freerdpfreerdp
SubsystemsOT Supporting Infrastructure
SectorsMultiple

What to Know

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.26.0, a malicious RDP client can trigger a heap-buffer-overflow write in FreeRDP's server-side clipboard (cliprdr) channel by sending a CB_CLIP_CAPS PDU with a too-small capabilitySetLength. This can crash the server process (remote DoS) and may be exploitable for code execution because it corrupts heap memory. This vulnerability is fixed in 3.26.0. (NVD)

What to Do

Monitor Red Hat's and freerdp's web pages for any future patch releases. See vendor advisory link below.

References

SourceReference
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2026-44420
CVEhttps://www.cve.org/CVERecord?id=CVE-2026-44420
Vendor advisoryhttps://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-mvpx-xj7r-3p3r

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