Vulnerability in Proxmox Backup_server

CVE-2023-43320

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-fa…

EPSS: 0.010 (58.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2023-43320?
CVE-2023-43320 is a high-severity vulnerability in Proxmox Backup_server. CVSS score: 8.8/10. Published 2023-09-27.
How severe is CVE-2023-43320?
High severity. CVSS v3 base score is 8.8 out of 10.
Is CVE-2023-43320 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.