{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-73242", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-08-11T17:18:01.597Z", "datePublished": "2026-08-11T19:49:46.974Z", "dateUpdated": "2026-08-12T12:57:18.410Z"}, "containers": {"cna": {"title": "FreeRDP: Kerberos GSS Wrap-token `EC` field is unbounded, causing an out-of-bounds decrypt in `kerberos_DecryptMessage`", "problemTypes": [{"descriptions": [{"cweId": "CWE-122", "lang": "en", "description": "CWE-122: Heap-based Buffer Overflow", "type": "CWE"}]}], "metrics": [{"cvssV4_0": {"attackVector": "NETWORK", "attackComplexity": "HIGH", "attackRequirements": "PRESENT", "privilegesRequired": "NONE", "userInteraction": "NONE", "vulnConfidentialityImpact": "LOW", "vulnIntegrityImpact": "LOW", "vulnAvailabilityImpact": "HIGH", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "baseScore": 8.3, "baseSeverity": "HIGH", "vectorString": "CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N", "version": "4.0"}}], "references": [{"name": "https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-vv64-95pc-vj9v", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-vv64-95pc-vj9v"}, {"name": "https://github.com/FreeRDP/FreeRDP/pull/13065", "tags": ["x_refsource_MISC"], "url": "https://github.com/FreeRDP/FreeRDP/pull/13065"}, {"name": "https://github.com/FreeRDP/FreeRDP/commit/0adf5e30d01be84e190a359a7bdd37bc51d740cc", "tags": ["x_refsource_MISC"], "url": "https://github.com/FreeRDP/FreeRDP/commit/0adf5e30d01be84e190a359a7bdd37bc51d740cc"}, {"name": "https://github.com/FreeRDP/FreeRDP/releases/tag/3.30.0", "tags": ["x_refsource_MISC"], "url": "https://github.com/FreeRDP/FreeRDP/releases/tag/3.30.0"}], "affected": [{"vendor": "FreeRDP", "product": "FreeRDP", "versions": [{"version": "< 3.30.0", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-08-11T19:49:46.974Z"}, "descriptions": [{"lang": "en", "value": "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."}], "source": {"advisory": "GHSA-vv64-95pc-vj9v", "discovery": "UNKNOWN"}}, "adp": [{"references": [{"url": "https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-vv64-95pc-vj9v", "tags": ["exploit"]}], "metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-08-12T12:56:59.150492Z", "id": "CVE-2026-73242", "options": [{"Exploitation": "poc"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-08-12T12:57:18.410Z"}}]}}

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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"}