CVE-2026-33983

描述

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.

如何修補 CVE-2026-33983

要修補 CVE-2026-33983,請將受影響套件升級到下列已修補版本。

• —未列出修補版本
• —升級至 3.15.0+dfsg-2.1+deb13u2 或更新版本

CVE-2026-33983 正在被利用嗎?

低 — EPSS 為 0.4%,目前沒有觀察到大規模利用活動。

受影響套件(2)

• from 0
• from 0, < 3.15.0+dfsg-2.1+deb13u2

CVSS 分數

參考連結(1)

• ADVISORYsecurity-tracker.debian.org/tracker/CVE-2026-33983