What is CVE-2025-67834?

CVE-2025-67834 is a medium-severity vulnerability in Paessler Prtg_network_monitor, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2026-01-14.

How severe is CVE-2025-67834?

Medium severity. CVSS v3 base score is 5.4 out of 10.

XSS in Paessler Prtg_network_monitor

CVE-2025-67834

Paessler PRTG Network Monitor before 25.4.114 allows XSS by an unauthenticated attacker via the filter parameter.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.002 (12.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N.

Affected products

Paessler Prtg_network_monitor
N/a — versions n/a

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

cve@mitre.org (Product)
cve@mitre.org (Vendor Advisory)

Frequently asked questions

What is CVE-2025-67834?: CVE-2025-67834 is a medium-severity vulnerability in Paessler Prtg_network_monitor, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2026-01-14.
How severe is CVE-2025-67834?: Medium severity. CVSS v3 base score is 5.4 out of 10.