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No exploitation reported

CVE-2021-45893

No exploitation reported by the sources we read.

  • Published2022-04-05
  • WeaknessCWE-178

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

An issue was discovered in Softwarebuero Zauner ARC 4.2.0.4. There is Improper Handling of Case Sensitivity, which makes password guessing easier.

Timeline

dates in UTC
  1. 2022-04-0502:15CVE publishedNVD

Versions per branch

NVD
Zauner arc
BranchAffectedFixed in
4.2= 4.2.0.4no fix published

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

No fix published by the sources we read yet. NVD record

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Published
2022-04-05
Last Modified
2026-06-17
NVD status
Modified
GitHub Advisory
GHSA-h873-265q-38wj

Frequently asked questions

What is CVE-2021-45893?

An issue was discovered in Softwarebuero Zauner ARC 4.2.0.4. There is Improper Handling of Case Sensitivity, which makes password guessing easier.

Is CVE-2021-45893 actively exploited?

Active exploitation of CVE-2021-45893 has not been confirmed. Its EPSS score was 1.6% on 2026-11-08, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2021-45893?

CVE-2021-45893 has a CVSS v3 base score of 7.5 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

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