What is CVE-2021-28925?

CVE-2021-28925 is a critical-severity vulnerability in Nagios Network Analyzer, classified under SQL Injection. CVSS score: 9.8/10. Published 2021-04-08.

How severe is CVE-2021-28925?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Is CVE-2021-28925 known to be exploited?

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

SQL Injection in Nagios Network Analyzer

CVE-2021-28925

SQL injection vulnerability in Nagios Network Analyzer before 2.4.3 via the o[col] parameter to api/checks/read/.

Vulnerability class: SQL Injection

Published 2021-04-08 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.048 (91.7th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 92nd percentile — 91.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.048 · newest: 0.048 · change: 0.000

Affected products

Nagios Network Analyzer

Weakness classification (CWE)

CWE-89 — SQL Injection

Public proof-of-concept exploits

References

medium.com/stolabs/issues-found-on-nagios-network-analyzer-2-4-2-50ec4ffb5e25 (Exploit, Third Party Advisory)
www.nagios.com/downloads/nagios-network-analyzer/change-log/ (Release Notes, Vendor Advisory)

Frequently asked questions

What is CVE-2021-28925?: CVE-2021-28925 is a critical-severity vulnerability in Nagios Network Analyzer, classified under SQL Injection. CVSS score: 9.8/10. Published 2021-04-08.
How severe is CVE-2021-28925?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2021-28925 known to be exploited?: 4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.