CVE-2026-28295

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{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": null}], "enrichment": {"confidence": 100.0, "confidence_source": "manual", "scores": [{"score": 100.0, "source": "manual"}]}, "original": {"product": "Red Hat Enterprise Linux 10", "source": "cna", "vendor": "Red Hat"}, "product": "enterprise_linux", "vendor": "redhat"}], "analysis": {"en": {"generated_at": "2026-04-17T14:20:29.028029+00:00", "value": {"mitigation_remediation": ["Avoid connecting to untrusted or unknown FTP servers when using applications that rely on the GVfs FTP backend.", "Apply Red\u202fHat updates that address the GVfs FTP backend PASV trust issue as they become available.", "If the FTP backend is not required, disable or restrict it using system configuration or firewall rules to block external PASV connections."], "summary": {"action": "Assess Impact", "impact": "Information Disclosure"}, "threat_synthesis": {"affected_systems": "This vulnerability affects Red\u202fHat Enterprise\u202fLinux distributions 10,\u202f6,\u202f7,\u202f8, and\u202f9. No further version granularity is provided, so all installations of these series that include the GVfs FTP backend are potentially impacted.", "description_and_impact": "A flaw in the GVfs FTP backend allows a malicious FTP server to provide an arbitrary IP address and port in its passive mode (PASV) response. The client unconditionally trusts this information and attempts to connect to the specified endpoint, enabling the server to probe for and discover open ports accessible from the client\u2019s network. The attacker therefore obtains information about the client\u2019s external connectivity and possible services, leading to an information disclosure risk.", "risk_and_exploitability": "The CVSS score of 4.3 indicates a moderate risk, and the EPSS score of less than 1% shows a very low probability of exploitation. The vulnerability is not listed in the CISA KEV catalog. Exploitation requires the client to connect to an attacker\u2011controlled FTP server, so the attack vector is client\u2011initiated and relies on the user establishing a connection to an untrusted server."}}}}, "created": "2026-02-27T09:07:24.465950+00:00", "updated": "2026-04-17T14:30:20.819972+00:00", "vendors": ["redhat", "redhat$PRODUCT$enterprise_linux"]}