Vulnerability · Published Oct 30, 2025 · Assigned by VulnCheck

CVE-2024-13996Nagios XI < 2024R1.1.3 Session Not Invalidated After Password Change

Critical 9.2

In plain English

A critical-severity security flaw in XI from Nagios. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.1% (higher than 65% of all known vulnerabilities).

Severity (CVSS 4.0)9.2Critical

Exploit odds (30 days)1.1%top 35.4% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

Nagios XI versions prior to 2024R1.1.3 did not invalidate all other active sessions for a user when that user's password was changed. As a result, any pre-existing sessions (including those potentially controlled by an attacker) remained valid after a credential update. This insufficient session expiration could allow continued unauthorized access to user data and actions even after a password change.

Affected products (as reported)

Vendor	Product	Versions
Nagios	XI	0 – before 2024R1.1.3

Weakness: CWE-613 · Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N

References

https://www.nagios.com/products/security/#nagios-xi vendor-advisory, patch
https://www.nagios.com/changelog/nagios-xi/ release-notes, patch
https://www.vulncheck.com/advisories/nagios-xi-session-not-invalidated-after-password-change third-party-advisory