CVE-2023-43320 is a high-severity privilege escalation vulnerability affecting Proxmox VE (v5.4-8.0), Proxmox Backup Server (v1.1-3.0), and Proxmox Mail Gateway (v7.1-8.0), allowing a remote authenticated attacker to bypass two-factor authentication. With a CVSS score of 8.8, this vulnerability has a low attack complexity and can lead to high impact on confidentiality, integrity, and availability. There is currently no evidence of active exploitation, public exploit code, or significant community discussion, and it is not listed in CISA's KEV catalog.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 1.1, <= 3.0CPE matchmatch criteria | cpe:2.3:a:proxmox:backup_server:*:*:*:*:*:*:*:* | ||
>= 7.1, <= 8.0CPE matchmatch criteria | cpe:2.3:a:proxmox:proxmox_mail_gateway:*:*:*:*:*:*:*:* | ||
>= 5.4, <= 8.0CPE matchmatch criteria | cpe:2.3:a:proxmox:virtual_environment:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.