What is CVE-2024-27453?

CVE-2024-27453 is a high-severity vulnerability in Extremenetworks Extremexos, classified under Incorrect Privilege Assignment. CVSS score: 8.6/10. Published 2024-05-03.

How severe is CVE-2024-27453?

High severity. CVSS v3 base score is 8.6 out of 10.

Privilege escalation in Extremenetworks Extremexos

CVE-2024-27453

In Extreme XOS through 22.6.1.4, a read-only user can escalate privileges to root via a crafted HTTP POST request to the python method of the Machine-to-Machine Interface (MMI).

Published 2024-05-03 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.6 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L.

EPSS exploit prediction

EPSS: 0.007 (52.2th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 52nd percentile — 52.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000

Affected products

Extremenetworks Extremexos

Weakness classification (CWE)

CWE-266 — Incorrect Privilege Assignment

References

www.exsiliumsecurity.com/CVE-2024-27453.html (Exploit, Third Party Advisory)
extreme-networks.my.site.com/ExtrArticleDetail (Vendor Advisory)

Frequently asked questions

What is CVE-2024-27453?: CVE-2024-27453 is a high-severity vulnerability in Extremenetworks Extremexos, classified under Incorrect Privilege Assignment. CVSS score: 8.6/10. Published 2024-05-03.
How severe is CVE-2024-27453?: High severity. CVSS v3 base score is 8.6 out of 10.