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FreeRDP versions before 3.28.0 contain a double-free vulnerability in the server-side rdpsnd channel handler. When processing a malformed Client Audio Formats PDU, rdpsnd_server_recv_formats can free the client-format allocation on an error path without clearing the corresponding context pointer and format-count state. Subsequent session teardown invokes rdpsnd_server_context_free, which frees the stale allocation again. The flaw can reliably terminate the FreeRDP server and may produce allocator-dependent heap corruption.
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No public exploit code observed for this vulnerability.
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A FreeRDP server-side double-free vulnerability in handling malformed RDP Client Audio Formats PDUs. It can reliably terminate the server and may cause allocator-dependent heap corruption.
A FreeRDP-related vulnerability affecting Amazon Linux 2 FreeRDP and WinPR packages that can cause a high-impact availability loss. Exploitation requires network access and low privileges, with no user interaction required.
A vulnerability addressed by the Alma Linux ALSA-2026:61378 security update affecting FreeRDP/WinPR packages; no vulnerability-specific technical details are provided.
A vulnerability addressed by the referenced Oracle Linux FreeRDP update; no technical flaw details are provided.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.