CVE-2021-45892Network attack vector

Password disclosure via reversible custom encryption

Published Apr 5, 2022 · Updated Aug 4, 2024

Credential disclosure in Softwarebüro Zauner ZA|ARC 4.2.0.4 allows attackers to recover application-user and database passwords. The application stores user passwords in the BENUTZER table and database credentials in zaarc.ini using custom reversible encryption whose decryption logic is recoverable from the executable. Exploitation requires prior retrieval of the database or configuration data; the result is plaintext credential disclosure and possible password reuse.

CVSS severity5.9
Medium
EPSS probability0.85%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Credential disclosure in Softwarebüro Zauner ZA|ARC 4.2.0.4 allows attackers to recover application-user and database passwords. The application stores user passwords in the BENUTZER table and database credentials in zaarc.ini using custom reversible encryption whose decryption logic is recoverable from the executable. Exploitation requires prior retrieval of the database or configuration data; the result is plaintext credential disclosure and possible password reuse.

The record

CVE
CVE-2021-45892
Published
Apr 5, 2022
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-522, CWE-257, T1555
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 5, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record 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

4.3NIST National Vulnerability DatabaseAV:N/AC:M/Au:N/C:P/I:N/A:N
5.9NIST National Vulnerability DatabaseCVSS:3.1/AV:N/AC:H/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 exploitUnconfirmed

Weakness, pattern, technique

CWE-522Insufficiently Protected Credentials
CWE-257Storing Passwords in a Recoverable Format
T1555Credentials from Password Stores

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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