CVE-2018-20434

Exploitation

Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.

SSVC decision

Not assessed by CISA

EPSS probability

71.49% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 99.4% of scored records. A rank, not a probability.

NVD base score

9.8 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

NVD analysis status

Modified. NVD last modified this record on 2026-06-17.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2019-04-24 20:05Z7 YR AGO

Last updated

2024-08-05 11:58Z2 YR AGO

Reserved

2018-12-24

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')Base

Data version

5.1

Document digest

bf785a355888a6db5bd8eaeec97750daea2abd7f455d60242733df4a748d5e25

• gist.github.comhttps://gist.github.com/mhaskar/516df57aafd8c6e3a1d70765075d372dx_refsource_MISC
• drive.google.comhttps://drive.google.com/file/d/1LcGmOY8x-TG-wnNr-cM_f854kxk0etva/view?usp=sharingx_refsource_MISC
• shells.systemshttps://shells.systems/librenms-v1-46-remote-code-execution-cve-2018-20434/x_refsource_MISC
• packetstormsecurity.comhttp://packetstormsecurity.com/files/153188/LibreNMS-addhost-Command-Injection.htmlx_refsource_MISC
• packetstormsecurity.comhttp://packetstormsecurity.com/files/153448/LibreNMS-1.46-addhost-Remote-Code-Execution.htmlx_refsource_MISC