What is CVE-2024-25421?

CVE-2024-25421 is a critical-severity vulnerability in Igniterealtime Openfire, classified under CWE-250. CVSS score: 9.8/10. Published 2024-03-26.

How severe is CVE-2024-25421?

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

Vulnerability in Igniterealtime Openfire

CVE-2024-25421

An issue in Ignite Realtime Openfire v.4.9.0 and before allows a remote attacker to escalate privileges via the ROOM_CACHE component.

Published 2024-03-26 · 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: 0.017 (75.6th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 76th percentile — 75.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.017 · newest: 0.017 · change: 0.000

Affected products

Igniterealtime Openfire

Weakness classification (CWE)

CWE-250

References

www.igniterealtime.org/projects/openfire/ (Product, Release Notes)
github.com/igniterealtime/Openfire/blob/main/xmppserver/src/main/java/org/jives… (Product)
www.hackthebox.com/blog/openfire-cves-explained-CVE-2024-25420-CVE-2024-25421 (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2024-25421?: CVE-2024-25421 is a critical-severity vulnerability in Igniterealtime Openfire, classified under CWE-250. CVSS score: 9.8/10. Published 2024-03-26.
How severe is CVE-2024-25421?: Critical severity. CVSS v3 base score is 9.8 out of 10.