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Red Hat Security Advisory

RHSA-2026:76755

freerdp security update

Released 2026-10-08 · Red Hat rating Important · View on Red Hat →

Fixed in

Fixes 6 records

Priority MEDIUM 64

FreeRDP before 3.31.0 contains a buffer over-read vulnerability in the rts_read_result function within the RPC gateway transport parser.

CVSS 4.0HIGH 7.1 Network No auth User interaction EPSS 0.00391 Published 2026-09-15 Partial fix · 3.31.0 CWE-125
Priority MEDIUM 64

FreeRDP versions before 3.31.0 contain a heap buffer overflow vulnerability in nego_send_negotiation_request() that fails to validate the LB_LOAD_BALANCE_INFO field length before writing to a fixed 512-byte buffer.

CVSS 4.0HIGH 7.1 Network No auth User interaction EPSS 0.00471 Published 2026-09-15 Partial fix · 3.31.0 CWE-120
Priority MEDIUM 41

FreeRDP versions before 3.31.0 contain a heap-based buffer overflow in nego_send_negotiation_request when processing Server Redirection PDU messages with attacker-controlled LoadBalanceInfo fields.

CVSS 4.0HIGH 8.7 Network No auth User interaction EPSS 0.00603 Published 2026-09-15 Partial fix · 3.31.0 CWE-122
Priority LOW 37

FreeRDP before 3.31.0 contains a null pointer dereference vulnerability in gdi_surface_bits when processing Surface Bits commands with NSCodec codec ID.

CVSS 4.0HIGH 7.1 Network No auth User interaction EPSS 0.00391 Published 2026-09-15 Partial fix · 3.31.0 CWE-476
Priority LOW 31

FreeRDP before 3.31.0 contains an out-of-bounds read vulnerability in the URBDRC channel's func_get_ep_desc function that indexes interface arrays by position instead of protocol field InterfaceNumber.

CVSS 4.0HIGH 7.1 Network No auth User interaction EPSS 0.00391 Published 2026-09-15 Partial fix · 3.31.0 CWE-125