CVE-2022-42953Public exploitNetwork attack vector

Employee credential disclosure via unauthenticated backup requests

Published Dec 25, 2022 · Updated Apr 15, 2025

Missing authentication in ZKTeco ZEM and ZMM firmware allows remote attackers to read employee credentials through the device web interface. The /form/DataApp handler serves device.dat or data.dat backup archives for unauthenticated GET requests based only on the style parameter. Network access is sufficient to retrieve PINs, card-token data, privilege levels, and fingerprint templates stored by the device.

CVSS severity7.5
High
EPSS probability4.83%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing authentication in ZKTeco ZEM and ZMM firmware allows remote attackers to read employee credentials through the device web interface. The /form/DataApp handler serves device.dat or data.dat backup archives for unauthenticated GET requests based only on the style parameter. Network access is sufficient to retrieve PINs, card-token data, privilege levels, and fingerprint templates stored by the device.

The record

CVE
CVE-2022-42953
Published
Dec 25, 2022
Updated
Apr 15, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-425, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 25, 2022CVE publishedPublication date reported by the CVE source.
  2. Apr 15, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.5NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
7.5CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-425Direct Request ('Forced Browsing')
T1190Exploit Public-Facing Application

Public exploit references

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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