{"id":"CVE-2024-7383","title":"Libnbd: nbd server improper certificate validation","summary":"A flaw was found in libnbd. The client did not always correctly verify the NBD server's certificate when using TLS to connect to an NBD server. This issue allows a man-in-the-middle attack on NBD traffic.","severity":"high","cvss":7.4,"cvssVector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N","cvssSource":"cna","cwe":["CWE-295"],"vendor":"Red Hat","product":"libnbd","affected":["libnbd >= 1.18.0 < 1.18.5","libnbd >= 1.20.0 < 1.20.2","virt-devel:rhel (all versions)","virt:rhel (all versions)","libnbd (all versions)","libnbd (all versions)","virt:av/libnbd (all versions)"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2024-08-06T16:15:33.971325Z"},"published":"2024-08-05","updated":"2026-11-05","sourceUpdated":"2026-11-05T14:43:59.819Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2024-7383","references":[{"url":"https://access.redhat.com/errata/RHSA-2024:6757","label":"RHSA-2024:6757"},{"url":"https://access.redhat.com/errata/RHSA-2024:6964","label":"RHSA-2024:6964"},{"url":"https://access.redhat.com/security/cve/CVE-2024-7383"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2302865","label":"RHBZ#2302865"},{"url":"https://lists.libguestfs.org/archives/list/guestfs@lists.libguestfs.org/message/LHR3BW6RJ7K4BJBQIYV3GTZLSY27VZO2"},{"url":"https://lists.libguestfs.org/archives/list/guestfs@lists.libguestfs.org/thread/ENZY4LHLARA3N4C3JUNLPYUCXHFO7BWQ/"}],"tags":["cve.org"],"epss":0.0039,"epssPercentile":0.33327,"ingestedAt":"2026-11-05T21:36:00.882Z","slug":"CVE-2024-7383","body":"## Overview\n\nA flaw was found in libnbd. The client did not always correctly verify the NBD server's certificate when using TLS to connect to an NBD server. This issue allows a man-in-the-middle attack on NBD traffic.\n\n## Affected\n\n- `libnbd >= 1.18.0 < 1.18.5`\n- `libnbd >= 1.20.0 < 1.20.2`\n- `virt-devel:rhel (all versions)`\n- `virt:rhel (all versions)`\n- `libnbd (all versions)`\n- `libnbd (all versions)`\n- `virt:av/libnbd (all versions)`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":41,"depthScoreParts":{"impact":40.7,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}