CVE-2022-35739

Name: CVE-2022-35739
Creator: NVD / NIST
Published: 2022-10-25T17:15:54.467+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.3/10EPSS 0.73%

Last modified Jun 17, 2026

CVE-2022-35739 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. PRTG Network Monitor through 22.2.77.2204 does not prevent custom input for a device’s icon, which can be modified to insert arbitrary content into the style tag for that device. When the device page loads, the arbitrary Cascading Style Sheets (CSS) data is inserted into the style tag, loading malicious content. EPSS estimates a 0.73% chance of exploitation in the next 30 days.

Description

PRTG Network Monitor through 22.2.77.2204 does not prevent custom input for a device’s icon, which can be modified to insert arbitrary content into the style tag for that device. When the device page loads, the arbitrary Cascading Style Sheets (CSS) data is inserted into the style tag, loading malicious content. Due to PRTG Network Monitor preventing “characters, and from modern browsers disabling JavaScript support in style tags, this vulnerability could not be escalated into a Cross-Site Scripting vulnerability.

Metrics

CVSS 3.1

5.3/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

EPSS Probability

0.73%

49.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Paessler	Prtg Network Monitor	< 22.3.79.2108

References

https://raxis.com/blog/cve-2022-35739Exploit, Third Party Advisory
https://www.paessler.com/prtg/history/stableRelease Notes, Vendor Advisory
https://raxis.com/blog/cve-2022-35739Exploit, Third Party Advisory
https://www.paessler.com/prtg/history/stableRelease Notes, Vendor Advisory

Timeline

Published: Oct 25, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-35739?

How severe is CVE-2022-35739?

CVE-2022-35739 has a CVSS score of 5.3/10 (MEDIUM severity). The EPSS model estimates a 0.73% probability of exploitation in the next 30 days.

How do I fix CVE-2022-35739?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-35739?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST