CVE-2020-35578

highpriority · attend · 68EPSS 0.819 · 100 %ileexploit · weaponizedEUUS

grimoire priorityP1 · Urgent

Exploitable?

Public exploit

3 exploits · weaponized

Likely / severe?

81.9% (100th) EPSS

CVSS 9 · high

Is it mine?

2 products

Check your exposure

Who says so?

3 sources

cnnvd · enisa_euvd · nvd

EPSS · scored 2026-10-27

An issue was discovered in the Manage Plugins page in Nagios XI before 5.8.0. Because the line-ending conversion feature is mishandled during a plugin upload, a remote, authenticated admin user can execute operating-system commands.

cvss

Technical severity, 0–10. One row per scoring source.

9.0

010

base score 0–10 · higher = more severe · hover a vector to decode

v2.09highAV:N/AC:L/Au:S/C:C/I:C/A:Cprimary · NVD / NIST USexploitability 8 · impact 10

v3.17.2highCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 1.2 · impact 5.9

v3.17.2highCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:Hsecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-78USprimary

exploits (3)

Public proof-of-concept and weaponised exploit code.

exploit/linux/http/nagios_xi_plugins_filename_authenticated_rceNagios XI Prior to 5.8.0 - Plugins Filename Authenticated Remote Code Exectionweaponized · metasploit
auxiliary/scanner/http/nagios_xi_scannerNagios XI Scannerfunctional · metasploit
EDB-49422Nagios XI 5.7.X - Remote Code Execution RCE (Authenticated)PoC · exploit_db

affected products (2)

Products and version ranges known to be affected.

n/a n/a≤ n/aenisa_euvdEU
nagios nagios xi< 5.8.0nvdUScpe:2.3:a:nagios:nagios_xi:*:*:*:*:*:*:*:*

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd NVD CVE.org MITRE

published 2021-01-13modified 2026-06-17

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references (16)

External citations — patches, advisories, analysis.

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