This page tracks the Debian fix status. The vulnerability itself is described on the main CVE page. View CVE-2026-91964 →

DEBIAN-CVE-2026-91964

FreeRDP versions before 3.31.0 contain a heap-based buffer overflow in nego_send_negotiation_request when processing Server Redirection PDU messages w...

Original description

The description as published by the source.

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. A malicious RDP server can trigger the overflow by sending an arbitrary-length field that gets written to a fixed 512-byte buffer without validation, causing client crashes or potential code execution when chained with memory disclosure.

Source: OSV.dev (Open Source Vulnerabilities) OSV

Affected packages

Debian:12 freerdp2

[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]

Debian:13 freerdp3

[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]

Debian:14 freerdp3

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.31.0+dfsg-1"}]}]

References

advisory security-tracker.debian.org