Medium severity · published Jan 14, 2026
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
6.5
CVSS
0.4%
EPSS
No
On KEV
Description
Paessler PRTG Network Monitor before 25.4.114 allows Denial-of-Service (DoS) by an authenticated attacker via the Notification Contacts functionality.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 35% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
PN
Prtg Network Monitor · Paessler
before 25.4.114.1032 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-67835
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-67835
Vendor Advisory
https://helpdesk.paessler.com/en/support/solutions/articles/76000087289-vulnerabilities-in-prtg-prior-v25-4-114-1032
Product
https://paessler.com
More from Prtg Network Monitor
9.8
CVE-2018-19410
Paessler PRTG Network Monitor Local File Inclusion Vulnerability
7.2
CVE-2018-9276
Paessler PRTG Network Monitor OS Command Injection Vulnerability
9.8
CVE-2020-10374
A webserver component in Paessler PRTG Network Monitor 19.2.50 to PRTG 20.1.56 allows unauthenticated remote command execution via a crafted POST request or the what parameter of…
8.8
CVE-2023-31452
A cross-site request forgery (CSRF) token bypass was identified in PRTG 23.2.84.1566 and earlier versions that allows remote attackers to perform actions with the permissions of a…
8.8
CVE-2018-19411
PRTG Network Monitor before 18.2.40.1683 allows an authenticated user with a read-only account to create another user with a read-write account (including administrator) via an…