Proxmox Backup Server 2 · Version Status
Proxmox Backup Server 2 End of Life Date
Proxmox Backup Server 2 end-of-life date, support status, and CVE risk. Data from endoflife.date and official vendor documentation.
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Proxmox Backup Server 2 is past end of life. This version no longer receives security patches. 706 days past EOL — migrate to a supported version immediately.
EOL Date
Jul 31, 2024
706 days past EOL
Latest Release
2.4
Standard release
Release Date
Jul 13, 2021
Proxmox Backup Server 2 series
Attack Surface
10/30 Medium tier
CISA KEV Exposure
0/20 Not in KEV
Extended Support
0/10 Available
EOL Risk Score™ — proprietary methodology by endoflife.ai. Factors: EOL recency, attack surface breadth, CISA KEV catalog presence, extended support availability. Updated at every build.
Methodology → ·
View score card →
Extended Support
Extended Proxmox Backup Server 2 support is available
Commercial vendors offer security patches beyond EOL — compare your options.
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All Proxmox Backup Server Versions
| Version | Latest | EOL Date | Status |
|---|
| 1 |
1.1 |
Sep 30, 2022 |
EOL |
| → 2 |
2.4 |
Jul 31, 2024 |
EOL |
| 3 |
3.4 |
Aug 31, 2026 |
Warning |
| 4 |
4.2 |
EOL |
Active |
What does Proxmox Backup Server 2 end of life mean?
When Proxmox Backup Server 2 reaches end of life, the maintainers stop issuing security patches for this version. CVEs discovered after the EOL date are publicly disclosed on the National Vulnerability Database with no patch available. Exploit code frequently appears on GitHub within days of disclosure.
The CVE blind spot: Most vulnerability scanners check for known CVEs but do not flag the ongoing accumulation of unpatched vulnerabilities in EOL software versions. Running Proxmox Backup Server 2 past its EOL date creates a permanently growing attack surface that standard security tooling will not surface.
Migrate to Proxmox Backup Server 4 or implement compensating controls — network segmentation, enhanced monitoring, restricted access — while migration is underway.
Frequently Asked Questions
When does Proxmox Backup Server 2 reach end of life?
Proxmox Backup Server 2 reached end of life on July 31, 2024. This version is no longer receiving security patches.
Is Proxmox Backup Server 2 still supported?
No. Proxmox Backup Server 2 reached end of life on July 31, 2024 and is no longer receiving security patches.
What should I upgrade to from Proxmox Backup Server 2?
The recommended upgrade from Proxmox Backup Server 2 is
Proxmox Backup Server 4 — the latest actively supported version. Check the
Proxmox Backup Server full timeline for all supported versions.
What are the security risks of running Proxmox Backup Server 2 past EOL?
When Proxmox Backup Server 2 reaches end of life, the maintainers stop issuing security patches. Any CVEs disclosed after the EOL date accumulate with no remediation path. Most vulnerability scanners do not flag this — it is the CVE blind spot. Organizations running EOL Proxmox Backup Server should migrate immediately or implement compensating controls.