CVE-2021-27220 json
An issue was discovered in PRTG Network Monitor before 21.1.66.1623.
published 2021-03-31 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-13985
- cvss
- 5.3
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.8%
- EPSS 1.8% chance of exploitation in 30 days, percentile 78%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- paessler prtg_network_monitor 21.1.66.1623
Exploit prediction
1.83% chance of exploitation in the next 30 days, higher than 78% of all scored CVEs (FIRST EPSS, 2026-11-08).
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 |
References
-
paessler.com
/prtg/history/stable#21.1.66.1623
release-notes, vendor-advisory
Sources
- CVE List CVE-2021-27220
- NVD CVE-2021-27220
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