CVE-2026-33983

MEDIUM

6.5

Description

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.24.2, progressive_decompress_tile_upgrade() detects a mismatch via progressive_rfx_quant_cmp_equal() but only emits WLog_WARN, execution continues. The wrapped value (247) is used as a shift exponent, causing undefined behavior and an approximately 80 billion iteration loop (CPU DoS). This issue has been patched in version 3.24.2.

Details CVE

Score CVSS v3.16.5

SeveriteMEDIUM

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

Vecteur d'attaqueNETWORK

ComplexiteLOW

Privileges requisNONE

Interaction utilisateurREQUIRED

Publie3/30/2026

Derniere modification4/1/2026

Sourcenvd

Observations honeypot0

Produits affectes

freerdp:freerdp

Faiblesses (CWE)

CWE-190CWE-252

References

https://github.com/FreeRDP/FreeRDP/commit/78188ab479c8e6eb9ba2475b3732c76b4bbe5425(security-advisories@github.com)

https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-4gfm-4p52-h478(security-advisories@github.com)

Correlations IOC

Aucune correlation enregistree

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