CVE-2023-4587

Sensitive file disclosure via user-controlled object references

Published Sep 4, 2023 · Updated Aug 2, 2024

Authorization bypass in ZKTeco ZEM800 6.60 allows remote attackers to read user backups and device configuration files over a local network. The public advisory identifies an IDOR in backup and configuration-file access but does not disclose the request path, object key, or failed authorization check. Access requires local-network or VPN reachability; the demonstrated consequence is disclosure of registered-user backups or device configuration data.

CVSS severity8.3
High
EPSS probability0.22%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Authorization bypass in ZKTeco ZEM800 6.60 allows remote attackers to read user backups and device configuration files over a local network. The public advisory identifies an IDOR in backup and configuration-file access but does not disclose the request path, object key, or failed authorization check. Access requires local-network or VPN reachability; the demonstrated consequence is disclosure of registered-user backups or device configuration data.

The record

CVE
CVE-2023-4587
Published
Sep 4, 2023
Updated
Aug 2, 2024
Vendor
ZKTeco
Product
ZEM800
Classifications
CWE-639, CAPEC-180, T1005
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 4, 2023CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=6.60

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

ZKTeco · ZEM800version=6.60

Published CVSS scores

8.3INCIBECVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L
5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-639Authorization Bypass Through User-Controlled Key
CAPEC-180Exploiting Incorrectly Configured Access Control Security Levels
T1005Data from Local System

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

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo