CVE-2026-22853

CRITICAL

9.8

Description

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.20.1, RDPEAR’s NDR array reader does not perform bounds checking on the on‑wire element count and can write past the heap buffer allocated from hints, causing a heap buffer overflow in ndr_read_uint8Array. This vulnerability is fixed in 3.20.1.

Details CVE

Score CVSS v3.19.8

SeveriteCRITICAL

Vecteur CVSSCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Vecteur d'attaqueNETWORK

ComplexiteLOW

Privileges requisNONE

Interaction utilisateurNONE

Publie1/14/2026

Derniere modification1/20/2026

Sourcenvd

Observations honeypot0

Produits affectes

freerdp:freerdp

Faiblesses (CWE)

CWE-787

References

https://github.com/FreeRDP/FreeRDP/releases/tag/3.20.1(security-advisories@github.com)

https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-47v9-p4gp-w5ch(security-advisories@github.com)

Correlations IOC

Aucune correlation enregistree

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