CVE-2026-33983 FreeRDP: Progressive Codec Quant BYTE Underflow - UB + CPU DoS

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.24.2, progressivedecompresstileupgrade detects a mismatch via progressiverfxquantcmpequal but only emits WLogWARN, execution continues. The wrapped value 247 is used as a shift exponent, causing undefined behavior...

CVE-2026-33983

FreeRDP , a free Remote Desktop Protocol implementation, is vulnerable to a Denial of Service (DoS) via a CPU-intensive loop. Prior to version 3.24.2 , the progressive_decompress_tile_upgrade() function fails to halt execution when a mismatch is detected via progressive_rfx_quant_cmp_equal(), mer...