What is CVE-2023-6523?

CVE-2023-6523 is a high-severity vulnerability in Extremepacs Extreme Xds, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 8.8/10. Published 2024-04-05.

How severe is CVE-2023-6523?

High severity. CVSS v3 base score is 8.8 out of 10.

Auth bypass in Extremepacs Extreme Xds

CVE-2023-6523

Authorization Bypass Through User-Controlled Key vulnerability in ExtremePacs Extreme XDS allows Authentication Abuse. This issue affects Extreme XDS: before 3914.

Vulnerability class: IDOR (Insecure Direct Object Reference)

Published 2024-04-05 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.006 (44.9th percentile), scored 2026-10-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 45th percentile — 44.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000

Affected products

Extremepacs Extreme Xds — versions 0

Weakness classification (CWE)

CWE-639 — Authorization Bypass Through User-Controlled Key

References

www.usom.gov.tr/bildirim/tr-24-0276 (government-resource, broken-link)
siberguvenlik.gov.tr/guvenlik-bildirimleri/detay/tr-24-0276 (government-resource)

Frequently asked questions

What is CVE-2023-6523?: CVE-2023-6523 is a high-severity vulnerability in Extremepacs Extreme Xds, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 8.8/10. Published 2024-04-05.
How severe is CVE-2023-6523?: High severity. CVSS v3 base score is 8.8 out of 10.