CVE-2023-24035

Severity CVSS v4.0:

Pending analysis

Type:

Unavailable / Other

Publication date:

14/09/2026

Last modified:

22/09/2026

Description

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.

Impact

Vector 3.x

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:N/A:N CVSS v3.1 Severity and Metrics:

Base Score: 3.50 LOW
Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:N/A:N

Attack Vector (AV): Network
Attack Complexity (AC): High
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Changed
Confidentiality (C): Low
Integrity (I): None
Availability (A): None

Base Score 3.x

3.50

Severity 3.x

LOW

References to Advisories, Solutions, and Tools

https://www.nagios.com/downloads/nagios-xi/change-log/
https://www.nagios.com/security-disclosures/