High · published February 9, 2026
⚡ An unchecked server-controlled dimension in FreeRDP paves the way for potential chaos! Before version 3.22.0, the ecam_encoder_compress_h264 function did not validate the source buffer size, leading to an out-of-bounds read. 🔥 Think of this as a delivery service that accepts huge packages without checking the size — they might just send your delivery to the wrong address or even break something in the process! 📦 An attacker could exploit this vulnerability to read memory outside of intended bounds, potentially revealing sensitive data. While not currently known to be exploited, the risks are significant, and leaving it unpatched could lead to dire consequences down the line.
Think of this as a delivery service that accepts huge packages without checking the size — they might just send your delivery to the wrong address or even break something in the process! 📦 This vulnerability arises from FreeRDP trusting dimensions sent from the server without validating the source buffer size, allowing an out-of-bounds read during the sws_scale operation, which could lead to memory leaks or crashes.
An attacker could exploit this vulnerability to read memory outside of intended bounds, potentially revealing sensitive data. While not currently known to be exploited, the risks are significant, and leaving it unpatched could lead to dire consequences down the line. Upgrade FreeRDP to version 3.22.0 or later immediately to close this gap. Additionally, review your server configurations to ensure they aren't exposing dimension requests that could be abused. Prioritize this patch in your maintenance schedule! You've got this! Patch up, secure your environment, and keep being a security hero! 🦸♂️