What is CVE-2021-33525?

CVE-2021-33525 is a high-severity vulnerability in Eyesofnetwork, classified under OS Command Injection. CVSS score: 8.8/10. Published 2021-05-24.

How severe is CVE-2021-33525?

High severity. CVSS v3 base score is 8.8 out of 10.

Is CVE-2021-33525 known to be exploited?

2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

RCE in Eyesofnetwork

CVE-2021-33525

EyesOfNetwork eonweb through 5.3-11 allows Remote Command Execution (by authenticated users) via shell metacharacters in the nagios_path parameter to lilac/export.php, as demonstrated by %26%26+curl to insert an "&& curl" substring for the shell.

Vulnerability class: Command Injection (OS Command Injection)

Published 2021-05-24 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.077 (94.4th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 94th percentile — 94.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.077 · newest: 0.077 · change: 0.000

Affected products

Eyesofnetwork

Weakness classification (CWE)

CWE-78 — OS Command Injection

Public proof-of-concept exploits

References

github.com/ArianeBlow/LilacPathVUln/blob/main/eon-pwn.sh (Exploit, Third Party Advisory)
github.com/EyesOfNetworkCommunity/eonweb/releases (Third Party Advisory, Release Notes)

Frequently asked questions

What is CVE-2021-33525?: CVE-2021-33525 is a high-severity vulnerability in Eyesofnetwork, classified under OS Command Injection. CVSS score: 8.8/10. Published 2021-05-24.
How severe is CVE-2021-33525?: High severity. CVSS v3 base score is 8.8 out of 10.
Is CVE-2021-33525 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.