PRTG Network Monitor before 20.1.57.1745 allows remote unauthenticated attackers to obtain information about probes running or the server i…

published 2020-04-04 6y ago modified 2026-06-17 4mo ago also EUVD-2020-3898

cvss: 5.3; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 52.1%; EPSS 52.1% chance of exploitation in 30 days, percentile 98%
public exploits: 0; none known, plus a Nuclei check

PRTG Network Monitor before 20.1.57.1745 allows remote unauthenticated attackers to obtain information about probes running or the server itself (CPU usage, memory, Windows version, and internal statistics) via an HTTP request, as demonstrated by type=probes to login.htm or index.htm.

Patch / fix

fixed in 1

paessler prtg_network_monitor 20.1.57.1745

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Exploit prediction

52.06% chance of exploitation in the next 30 days, higher than 98% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

Nuclei template PRTG Network Monitor <20.1.57.1745 - Information Disclosure nuclei detection template

CVSS scores

assigned by	version	score	vector
NVD	3.1	5.3	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
NVD	2.0	5.0	AV:N/AC:L/Au:N/C:P/I:N/A:N

Classification

Weakness

CWE-306 Missing Authentication for Critical Functionality

References

github.com /ch-rigu/PRTG-Network-Monitor-Information-Disclosure
broken-link

Sources

CVE List CVE-2020-11547
NVD CVE-2020-11547

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