CVE-2026-121393

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{"bugzilla": {"description": "freerdp: freerdp: Denial of Service via crafted RemoteFX region coordinates", "id": "2565886", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2565886"}, "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-617", "details": ["A flaw was found in FreeRDP. A malicious Remote Desktop Protocol (RDP) server can cause a Denial of Service (DoS) by sending crafted RemoteFX graphics data to a connecting client. When the client processes malformed region rectangle coordinates, an internal assertion failure occurs, abruptly terminating the client application."], "mitigation": {"lang": "en:us", "value": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability."}, "name": "CVE-2026-121393", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "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": "Not affected", "package_name": "freerdp", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "freerdp", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "freerdp", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-11-03T14:27:58Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-121393\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-121393\nhttps://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-7qw2-8h66-pvpw\nhttps://www.vulncheck.com/advisories/freerdp-3.0.0-before-3.32.2-denial-of-service-via-remotefx-region-assertion"], "statement": "Red Hat has evaluated this issue as having a Moderate severity impact because exploitation is limited to a client crash and requires the user to initiate a connection to a rogue or compromised Remote Desktop host. The flaw does not facilitate arbitrary code execution, privilege escalation, or data leakage on the client system. Additionally, enterprise client installations are not exposed as listening network services, which restricts the attack surface to outbound sessions against untrusted targets.", "threat_severity": "Moderate"}

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