PRTG Network Monitor
Paessler · current 26.3.122.1665
The current version of PRTG Network Monitor is 26.3.122.1665 (as of 23/07/2026). patchletter checks the official source daily and emails you every new release.
Actively exploited vulnerabilities
The US cybersecurity agency CISA lists these vulnerabilities in its catalog of Known Exploited Vulnerabilities. Check your version and patch or mitigate promptly.
- CVE-2018-19410Paessler PRTG Network Monitor Local File Inclusion Vulnerability
9.8 critical · over the network, without login · CISA deadline was 25 Feb 25
- CVE-2018-9276Paessler PRTG Network Monitor OS Command Injection Vulnerability
7.2 high · over the network, with admin rights only · CISA deadline was 25 Feb 25
Source: CISA KEV. The CVE is matched to the product automatically — when in doubt, the linked NVD entry applies.
PRTG Network Monitor at a glance
PRTG Network Monitor (from Paessler) is a widely used, sensor-based monitoring tool for networks and systems, popular in SMBs. Paessler ships regular releases across stable and preview channels; as a monitoring system with broad visibility and credentials, it deserves hardening and timely updates.
For admins updates run through the built-in mechanism; take a configuration backup first. PRTG holds credentials to the monitored systems (SNMP, WMI, logins), so keep the web interface off the open internet and behind authentication. New versions bring sensor types and fixes. After updating, verify that sensors and notifications still work — silent alerting failures are worse than a visible outage. Watch the version and its support status, and mind the sensor-count licensing when planning growth.
Version history & changelog · as detected by patchletter
| Version | Channel | Date | Notes |
|---|---|---|---|
| 26.3.122.1665 | STABLE | 23/07/2026 | Release notes → |
| 26.2.120.1477 | STABLE | 08/07/2026 | Release notes → |
| 26.2.120.1449 | STABLE | 08/07/2026 | Release notes → |
| 26.2.120 | STABLE | 08/07/2026 | Release notes → |
| 26.1.118.1380 | STABLE | 08/07/2026 | Release notes → |
| 26.1.118 | STABLE | 08/07/2026 | Release notes → |
Frequently asked questions
- What is the latest version of PRTG Network Monitor?
- PRTG Network Monitor 26.3.122.1665, released 23/07/2026. patchletter checks the vendor's official source daily for new releases.
- Where can I find the PRTG Network Monitor release notes?
- The version history above links to the vendor's official release notes where the vendor publishes them. patchletter deliberately stores no vendor full texts.
- How do I get notified about new PRTG Network Monitor updates?
- Free by email: patchletter reports every new release — instantly or bundled as a digest. Unsubscribe anytime with one click.
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[](https://patchletter.com/en/software/prtg)https://patchletter.com/badge/prtg.svgAlso available: ?v=eol (end of support) and ?v=cve (actively exploited).
