{"cve":"CVE-2023-43320","nvd":{"published":"2023-09-27T23:15:12.113","modified":"2026-06-17T06:25:25.400","status":"Modified","description":"An issue in Proxmox Server Solutions GmbH Proxmox VE v.5.4 thru v.8.0, Proxmox Backup Server v.1.1 thru v.3.0, and Proxmox Mail Gateway v.7.1 thru v.8.0 allows a remote authenticated attacker to escalate privileges via bypassing the two-factor authentication component.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":8.8},"cwes":[],"references":["http://packetstormsecurity.com/files/176967/Proxmox-VE-7.4-1-TOTP-Brute-Force.html","https://bugzilla.proxmox.com/show_bug.cgi?id=4579","https://bugzilla.proxmox.com/show_bug.cgi?id=4584","https://github.com/proxmox/proxmox-rs/commit/50b793db8d3421bbfe2bce060a486263f18a90cb","http://packetstormsecurity.com/files/176967/Proxmox-VE-7.4-1-TOTP-Brute-Force.html"],"products":["proxmox:backup_server","proxmox:proxmox_mail_gateway","proxmox:virtual_environment"],"source":"nvd","synced_at":"2026-10-19T21:39:34.467980132+00:00"},"epss":{"cve":"CVE-2023-43320","score":0.01386,"percentile":0.72235,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}