VULNERABILITY INTELLIGENCE

CVE-2026-33983

CVSS score6.5 MEDIUM
EPSS probability0.44%
CISA KEVNot currently listed
Published2026-03-30
Last modified2026-07-15
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

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.

Weakness classification

  • security-advisories@github.com: CWE-190
  • 0b0ca135-0b70-47e7-9f44-1890c2a1c46c: CWE-190

Primary references