CVE-2026-91951
FreeRDP 3.14.0 through 3.30.0 Out-of-bounds Write via urbdrc
CVSS 4.0 7.1 HIGHCVSS 3.1 6.5 MEDIUMCheck source for fixed versionsKEV status unknown
cve-program · CVE-2026-91951
PublishedFreeRDP versions before 3.31.0 contain an out-of-bounds write vulnerability in the urbdrc client channel's urb_send_current_frame_number_result() function. A malicious RDP server can send a crafted 28-byte USB redirection message to trigger a 4-byte write past the allocated 16-byte buffer, causing denial of service when verbose asserts are enabled.
Read the publisher's advisoryAffected versions, risk and source history
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CVE-2026-91951 · CVE overview and exploitation status
cve-program · CVE-2026-91951
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