CVE-2026-73242

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{"bugzilla": {"description": "FreeRDP: FreeRDP: Out-of-bounds memory access in Kerberos decryption", "id": "2514346", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2514346"}, "csaw": false, "cvss3": {"cvss3_base_score": "6.4", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:H", "status": "draft"}, "cwe": "CWE-125", "details": ["FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.30.0, FreeRDP's winpr/libwinpr/sspi/Kerberos/kerberos.c kerberos_DecryptMessage function fails to bound the peer-controlled GSS Wrap-token EC field before using it with RRC in IOV pointer offsets, allowing a malicious RDP peer to trigger out-of-bounds reads and in-place writes during CredSSP/NLA Kerberos decryption. This issue is fixed in version 3.30.0.", "A flaw in FreeRDP's Kerberos implementation allows a malicious RDP peer to cause an out-of-bounds memory access by providing an unbounded GSS Wrap-token EC field. This occurs during CredSSP/NLA decryption and can lead to a denial of service or information disclosure."], "mitigation": {"lang": "en:us", "value": "Use FreeRDP with Kerberos/NLA only against trusted RDP peers. As a client, avoid connecting to untrusted RDP servers; as a server, restrict inbound RDP to trusted clients using host firewall rules or network segmentation."}, "name": "CVE-2026-73242", "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": "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": "2026-08-11T19:49:46Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-73242\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-73242\nhttps://github.com/FreeRDP/FreeRDP/commit/0adf5e30d01be84e190a359a7bdd37bc51d740cc\nhttps://github.com/FreeRDP/FreeRDP/pull/13065\nhttps://github.com/FreeRDP/FreeRDP/releases/tag/3.30.0\nhttps://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-vv64-95pc-vj9v"], "statement": "An Important out-of-bounds memory vulnerability in FreeRDP's CredSSP/NLA Kerberos decryption allows a malicious RDP endpoint to execute arbitrary code or expose sensitive information on connected clients and servers. This flaw only affects FreeRDP 3.0.0 and newer, meaning RHEL 9 and older versions are not affected.", "threat_severity": "Moderate"}

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