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.
References (4)
Core 4
Core References
Issue Tracking, Vendor Advisory
https://bugzilla.proxmox.com/show_bug.cgi?id=4579
Issue Tracking, Vendor Advisory
https://bugzilla.proxmox.com/show_bug.cgi?id=4584
Exploit, Third Party Advisory
http://packetstormsecurity.com/files/176967/Proxmox-VE-7.4-1-TOTP-Brute-Force.html
Scores
CVSS v3
8.8
EPSS
0.0099
EPSS Percentile
58.4%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
total
Details
Status
published
Products (3)
proxmox/backup_server
1.1 - 3.0
proxmox/proxmox_mail_gateway
7.1 - 8.0
proxmox/virtual_environment
5.4 - 8.0
Published
Sep 27, 2023
Tracked Since
Feb 18, 2026