CVE-2026-121962FreeRDP before 3.32.2 Heap Buffer Overflow via Early User Authorization Read

Beschreibung

FreeRDP before 3.32.2 contains a heap buffer overflow in transport_default_read_pdu when handling partial Early User Authorization reads during PROTOCOL_HYBRID_EX CredSSP. A malicious RDP server can split the four-byte EUA result into short reads that advance the stream pointer beyond the 16 KiB allocation, causing an out-of-bounds write and client denial of service.

Daten: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Wiedergegeben wie in der Quelle, auf Englisch.

Betroffene Produkte und Versionen

Referenzen und Patches

• GitHub Security Advisory (GHSA-j536-qc58-pmf8) vendor-advisoryExploitMitigationVendor Advisory
• VulnCheck Advisory: FreeRDP before 3.32.2 Heap Buffer Overflow via Early User Authorization Read third-party-advisoryThird Party Advisory