CVE-2023-43320 json
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…
published 2023-09-27 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-47739
- cvss
- 8.8
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.4%
- EPSS 1.4% chance of exploitation in 30 days, percentile 72%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- 2 y ago
Exploit prediction
1.39% chance of exploitation in the next 30 days, higher than 72% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
References
-
github.com
/proxmox/proxmox-rs/commit/50b793db8d3421bbfe2bce060a486263f18a90cb
patch
-
bugzilla.proxmox.com
/show_bug.cgi?id=4579
issue-tracking, vendor-advisory
-
bugzilla.proxmox.com
/show_bug.cgi?id=4584
issue-tracking, vendor-advisory
- packetstormsecurity.com /files/176967/Proxmox-VE-7.4-1-TOTP-Brute-Force.html
Sources
- CVE List CVE-2023-43320
- NVD CVE-2023-43320
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.