Medium severity · published Mar 31, 2021
CVE-2021-27220
An issue was discovered in PRTG Network Monitor before 21.1.66.1623
5.3
CVSS
1.8%
EPSS
No
On KEV
Description
An issue was discovered in PRTG Network Monitor before 21.1.66.1623. By invoking the screenshot functionality with prepared context paths, an attacker is able to verify the existence of certain files on the filesystem of the PRTG's Web server.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
Low
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.8% · higher than 79% 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 21.1.66.1623 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-27220
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-27220
Release Notes
https://www.paessler.com/prtg/history/stable#21.1.66.1623
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