CVE-2023-6523Network attack vector

Authenticated authorization bypass via user-controlled record key

Published Apr 5, 2024 · Updated May 20, 2026

Authorization bypass in ExtremePACS Extreme XDS before 3914 allows remote authenticated users to access records via a user-controlled key. The published record identifies an IDOR but does not disclose the affected endpoint, record type, or authorization-check implementation. A low-privileged account and network access are required; the public record reports confidentiality, integrity, and availability impact without identifying the exact post-bypass actions.

CVSS severity8.8
High
EPSS probability0.57%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authorization bypass in ExtremePACS Extreme XDS before 3914 allows remote authenticated users to access records via a user-controlled key. The published record identifies an IDOR but does not disclose the affected endpoint, record type, or authorization-check implementation. A low-privileged account and network access are required; the public record reports confidentiality, integrity, and availability impact without identifying the exact post-bypass actions.

The record

CVE
CVE-2023-6523
Published
Apr 5, 2024
Updated
May 20, 2026
Vendor
ExtremePACS
Product
Extreme XDS
Classifications
CWE-639, CAPEC-114
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 5, 2024CVE publishedPublication date reported by the CVE source.
  2. May 20, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <3914

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

ExtremePACS · Extreme XDSversion=0 <3914

Published CVSS scores

8.8TR-CERTCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-639Authorization Bypass Through User-Controlled Key
CAPEC-114Authentication Abuse

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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