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{"bugzilla": {"description": "FreeRDP: FreeRDP: Denial of Service via malformed media data", "id": "2509984", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2509984"}, "csaw": false, "cvss3": {"cvss3_base_score": "6.5", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-125", "details": ["FreeRDP before 3.29.0 contains a heap out-of-bounds read vulnerability in the TSMF FFmpeg decoder when parsing AVC1 MPEG2VIDEOINFO media types with insufficient ExtraData. Attackers can send malformed media format data from a server to trigger a crash by reading fixed offsets without validating source buffer length.", "A flaw was found in FreeRDP. A malicious Remote Desktop Protocol (RDP) server can send specially crafted media data to a connected client. This malformed data can trigger a heap out-of-bounds read vulnerability within the TSMF FFmpeg decoder, leading to the client application crashing. This can result in a denial of service for the client."], "mitigation": {"lang": "en:us", "value": "To mitigate this issue, disable the Terminal Services Multimedia Redirection (TSMF) feature when connecting to untrusted RDP servers. This prevents the vulnerable media processing from being engaged.\nFor `xfreerdp` clients, use the `/disable-tsmf` or `/tsmf:off` command-line option:\n`xfreerdp /disable-tsmf <server_address>`\nDisabling TSMF will prevent multimedia content from being redirected during the RDP session."}, "name": "CVE-2026-67290", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Affected", "package_name": "freerdp", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "freerdp", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Affected", "package_name": "freerdp", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "freerdp", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "freerdp", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-08-01T12:22:16Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-67290\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-67290\nhttps://github.com/FreeRDP/FreeRDP/commit/8d3b86022f0d71aefa7bd2e466d2d391693a41b3\nhttps://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-whq8-c3v3-p8v8\nhttps://www.vulncheck.com/advisories/freerdp-before-heap-out-of-bounds-read-via-tsmf"], "statement": "This vulnerability in FreeRDP is rated as Important. A FreeRDP client connecting to a malicious or untrusted RDP server can be subjected to a denial of service. The flaw stems from a heap out-of-bounds read within the TSMF FFmpeg decoder when processing malformed media data, leading to client application crashes.", "threat_severity": "Moderate"}

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