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Network Management & Monitoring · head-to-head

Nagios vs Zabbix

Self-hosted NMS/NPM platforms (carry their own CVEs). Counts are scoped to this segment and the selected published-date window. Nagios carries 14.3× the disclosed CVE volume of Zabbix. Volume reflects disclosure practice and install base as much as code quality — read it with the severity mix. Sourced from the NIST NVD; lower counts indicate a smaller disclosed vulnerability surface — not necessarily lower risk.

01

Disclosure record

Bars are normalized per row to the larger value; the leading count is emphasized.

Metric comparison: Nagios versus Zabbix. Each row gives the metric, Nagios’s count on the left and Zabbix’s count on the right.
NagiosMetricZabbix
86Total CVEs6
5Critical0
32High2
49Medium3
0Low1
113Open in latest67
02

Risk profile

Each severity band as a share of the vendor's own total — strips out raw volume so the profiles compare directly.

Nagios

5.8% critical
Critical
55.8%
High
3237.2%
Medium
4957.0%
Low
00.0%

Zabbix

0.0% critical
Critical
00.0%
High
233.3%
Medium
350.0%
Low
116.7%
03

Recent activity

Latest in-window disclosures per vendor, newest first. Each ID links to its NVD record.

Nagios

Recent CVEs affecting Nagios
CVESeverityCVSSPublished
CVE-2026-2043(opens NVD record)High
8.8
Feb 20, 2026
CVE-2026-2042(opens NVD record)High
8.8
Feb 20, 2026
CVE-2026-2041(opens NVD record)High
8.8
Feb 20, 2026
CVE-2025-67255(opens NVD record)High
8.8
Dec 29, 2025
CVE-2025-67254(opens NVD record)High
7.5
Dec 29, 2025
CVE-2025-34288(opens NVD record)Medium
6.7
Dec 16, 2025

Zabbix

Recent CVEs affecting Zabbix
CVESeverityCVSSPublished
CVE-2026-23925(opens NVD record)High
8.1
Mar 6, 2026
CVE-2025-49641(opens NVD record)Medium
4.3
Oct 3, 2025
CVE-2025-27236(opens NVD record)Medium
6.5
Oct 3, 2025
CVE-2025-27231(opens NVD record)Medium
4.9
Oct 3, 2025
CVE-2025-27240(opens NVD record)High
7.2
Sep 12, 2025
CVE-2025-27238(opens NVD record)Low
3.5
Sep 12, 2025

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