PRTG Network Monitor vulnerabilities: known CVEs & security history
Paessler · Infrastructure · 39 tracked CVEs · 2 actively exploited · updated June 2026 · what is a CVE? →
This is the full list of known vulnerabilities (CVEs) across all PRTG Network Monitor release lines — 39 in total, with 2 actively exploited in the wild. A CVE here doesn't mean your version is affected — check PRTG Network Monitor's current status and the safe version to run.
Known PRTG Network Monitor CVEs
Actively-exploited and most-severe first. Open any CVE for full details.
| CVE | Severity | CVSS | EPSS | Year |
|---|---|---|---|---|
| CVE-2018-19410⚡ exploited | critical | 9.8 | 86% | 2018 |
| CVE-2018-9276⚡ exploited | high | 7.2 | 87% | 2018 |
| CVE-2020-10374 | critical | 9.8 | 5% | 2020 |
| CVE-2023-31452 | high | 8.8 | 1% | 2023 |
| CVE-2018-19411 | high | 8.8 | 1% | 2018 |
| CVE-2018-19204 | high | 8.8 | 5% | 2018 |
| CVE-2018-19203 | high | 7.5 | 3% | 2018 |
| CVE-2018-10253 | high | 7.5 | 8% | 2018 |
| CVE-2023-32782 | high | 7.2 | 52% | 2023 |
| CVE-2023-32781 | high | 7.2 | 12% | 2023 |
| CVE-2019-11074 | high | 7.2 | 5% | 2020 |
| CVE-2019-11073 | high | 7.2 | 6% | 2020 |
| CVE-2017-15651 | medium | 6.7 | 1% | 2017 |
| CVE-2025-67835 | medium | 6.5 | 0% | 2026 |
| CVE-2017-15917 | medium | 6.5 | 1% | 2017 |
| CVE-2015-7743 | medium | 6.5 | 1% | 2017 |
| CVE-2025-67833 | medium | 6.1 | 0% | 2026 |
| CVE-2024-12833 | medium | 6.1 | 1% | 2025 |
| CVE-2023-51630 | medium | 6.1 | 2% | 2024 |
| CVE-2019-9207 | medium | 6.1 | 1% | 2019 |
| CVE-2019-9206 | medium | 6.1 | 1% | 2019 |
| CVE-2018-14683 | medium | 6.1 | 1% | 2019 |
| CVE-2017-15009 | medium | 6.1 | 1% | 2017 |
| CVE-2017-9816 | medium | 6.1 | 1% | 2017 |
| CVE-2016-5078 | medium | 6.1 | 1% | 2017 |
| CVE-2019-19119 | medium | 5.5 | 0% | 2020 |
| CVE-2025-67834 | medium | 5.4 | 0% | 2026 |
| CVE-2021-29643 | medium | 5.4 | 1% | 2021 |
| CVE-2020-14073 | medium | 5.4 | 3% | 2020 |
| CVE-2017-15360 | medium | 5.4 | 1% | 2017 |
| CVE-2017-12879 | medium | 5.4 | 1% | 2017 |
| CVE-2022-35739 | medium | 5.3 | 1% | 2022 |
| CVE-2021-27220 | medium | 5.3 | 2% | 2021 |
| CVE-2020-11547 | medium | 5.3 | 52% | 2020 |
| CVE-2017-15008 | medium | 4.8 | 1% | 2017 |
| CVE-2023-31450 | medium | 4.7 | 0% | 2023 |
| CVE-2023-31449 | medium | 4.7 | 0% | 2023 |
| CVE-2023-31448 | medium | 4.7 | 0% | 2023 |
| CVE-2021-34547 | medium | 4.3 | 0% | 2021 |
Is my PRTG Network Monitor version affected?
The list above spans every release. To know whether your version is affected — and the minimum safe version to upgrade to — check it directly.
Check your PRTG Network Monitor version → · Monitor PRTG Network Monitor for new CVEs →
PRTG Network Monitor vulnerabilities — frequently asked
How many known vulnerabilities does PRTG Network Monitor have?
IsItPatched tracks 39 CVEs for PRTG Network Monitor, 2 of which are actively exploited (CISA KEV). 2 are critical-severity and 10 high-severity. These span every release line — what matters is whether the version you run is affected.
Does PRTG Network Monitor have any actively-exploited vulnerabilities?
Yes — 2 PRTG Network Monitor CVEs are in CISA's Known Exploited Vulnerabilities catalog, meaning they are confirmed exploited in the wild. Patch these as a priority.
What is the most severe PRTG Network Monitor vulnerability?
Among tracked issues, CVE-2018-19410 (CRITICAL, CVSS 9.8), which is actively exploited, ranks highest.
Is PRTG Network Monitor safe to use?
It depends on the version. The latest supported PRTG Network Monitor release clears the known issues; older versions may still be affected. Check the exact version you run for a verdict.
CVE data aggregated from NVD, CISA KEV and EPSS (FIRST.org). Related: PRTG Network Monitor security status · PRTG Network Monitor end-of-life · actively-exploited CVEs. Always verify against Paessler's advisories — see our disclaimer.