SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2020-35578

Because the line-ending conversion feature is mishandled during a plugin upload, a remote, authenticated admin user can execute operating-system commands.

EXPLOITHIGH 7.2EPSS 81.9%

Does this matter?

EPSS puts the probability of exploitation in the next 30 days at 81.9%, higher than 100% of all known CVEs. Patch or mitigate before the next change window.

Description

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 3.1
7.2 HIGHCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
EPSS
81.92% probability · 100th percentile
Public exploits
1 in Exploit-DB · first 14 January 2021
CISA KEV
Not listed
Weakness
CWE-78
Affected
nagios/nagios xi
Source
cve@mitre.org
EPSS trend
0%43%85%3 November 2026: 81.92%3 November 20263 November 2026

EPSS 81.9% since 3 November 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

Public exploits (1)

Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.

EDB-IDTitleTypePublishedVerified
EDB-49422source ↗Nagios XI 5.7.X - Remote Code Execution RCE (Authenticated)php · Haboob Teamwebapps14 January 2021no

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.