Vulnerability in Nagios Xi

CVE-2023-24035

An issue was discovered in Nagios XI before 5.9.3. The is_insecure_login_authenticated function uses a insecure timing comparison that leads to an attacker being able to bruteforce the admin password, by measuring timing differences in the comparison.

EPSS: 0.008 (53.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 3.5 (Low). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:N/A:N.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2023-24035?
CVE-2023-24035 is a low-severity vulnerability in Nagios Xi, classified under CWE-208. CVSS score: 3.5/10. Published 2026-09-14.
How severe is CVE-2023-24035?
Low severity. CVSS v3 base score is 3.5 out of 10.