CVE-2026-121400: FreeRDP, отказ на услуга

Описание

Оригинално описание

FreeRDP before 3.32.2 contains a denial-of-service vulnerability in rdg_process_control_packet that allows a malicious RD Gateway to exhaust client CPU by sending an incomplete keepalive control packet. Attackers completing the RDG tunnel-open exchange then send an eight-byte header with packetLength 0xFFFF and withhold the body, causing an unbounded no-progress read loop that spins one client thread at full CPU.

Засегнати продукти

• FreeRDP FreeRDP: преди 3.32.2; 3.32.2

Вид слабост

• CWE-835 Loop with Unreachable Exit Condition

История

Други уязвимости в FreeRDP FreeRDP

• 7.1CVE-2026-121412
• 5.3CVE-2026-121410
• 3.1CVE-2026-121411
• 8.2CVE-2026-121409
• 6.0CVE-2026-121408

Първоизточници

• https://www.cve.org/CVERecord?id=CVE-2026-121400
• https://nvd.nist.gov/vuln/detail/CVE-2026-121400
• https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-x4x6-2hrm-hvq9
• https://www.vulncheck.com/advisories/freerdp-before-3.32.2-cpu-exhaustion-via-rdg-control-packet