CVE-2026-67296

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{"bugzilla": {"description": "FreeRDP: FreeRDP: Denial of Service due to RDPEI message processing", "id": "2510029", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2510029"}, "csaw": false, "cvss3": {"cvss3_base_score": "6.5", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-20", "details": ["FreeRDP before 3.29.0 contains a denial of service vulnerability in the RDPEI server channel handler that fails to validate maximum PDU body length before stream allocation. A malicious RDP client can send a header-only RDPEI message with a large declared body length to force excessive memory allocation on the server.", "A flaw was found in FreeRDP. A remote attacker can exploit a vulnerability in the Remote Desktop Protocol (RDP) Enhanced Input (RDPEI) server channel handler. By sending a malicious RDPEI message with an oversized declared body length, the attacker can force the server to allocate excessive memory, leading to a denial of service (DoS)."], "mitigation": {"lang": "en:us", "value": "To mitigate this do not expose FreeRDP server/proxy/shadow (freerdp-shadow-cli / freerdp-proxy) to untrusted networks\u2014allow only trusted clients via firewall, or disable those services if unused."}, "name": "CVE-2026-67296", "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": "Not affected", "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": "2026-08-01T12:22:17Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-67296\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-67296\nhttps://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-jm8r-22j6-4m4v\nhttps://www.vulncheck.com/advisories/freerdp-before-denial-of-service-via-rdpei-pdu"], "statement": "A Moderate denial of service (DoS) vulnerability in FreeRDP's RDPEI server channel affects systems acting as an RDP server or proxy. A remote, unauthenticated attacker can send a specially crafted RDP message to trigger excessive memory allocation, causing service disruption.", "threat_severity": "Moderate"}

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