What is CVE-2025-67835?

CVE-2025-67835 is a medium-severity vulnerability in Paessler Prtg Network Monitor, classified under Uncontrolled Resource Consumption. CVSS score: 6.5/10. Published 2026-01-14.

How severe is CVE-2025-67835?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Resource exhaustion in Paessler Prtg Network Monitor

CVE-2025-67835

Paessler PRTG Network Monitor before 25.4.114 allows Denial-of-Service (DoS) by an authenticated attacker via the Notification Contacts functionality.

Vulnerability class: DoS (Denial of Service)

Published 2026-01-14 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.004 (31.8th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 32nd percentile — 31.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: +0.000

Affected products

Paessler Prtg Network Monitor

Weakness classification (CWE)

CWE-400 — Uncontrolled Resource Consumption

References

paessler.com (Product)
helpdesk.paessler.com/en/support/solutions/articles/76000087289-vulnerabilities… (Vendor Advisory)

Frequently asked questions

What is CVE-2025-67835?: CVE-2025-67835 is a medium-severity vulnerability in Paessler Prtg Network Monitor, classified under Uncontrolled Resource Consumption. CVSS score: 6.5/10. Published 2026-01-14.
How severe is CVE-2025-67835?: Medium severity. CVSS v3 base score is 6.5 out of 10.