CVE-2021-44794Network attack vector

Unauthenticated device information disclosure via missing authorization

Published Jan 27, 2022 · Updated May 18, 2026

Missing authorization in Kron Technologies Single Connect before 2.16 allows remote attackers to read device information without authentication. The sc-diagnostic-ui module serves the device information page without checking whether the requester is authorized. Network reachability to the web interface is sufficient; the published impact is limited to disclosure of sensitive device information.

CVSS severity5.3
Medium
EPSS probability0.99%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing authorization in Kron Technologies Single Connect before 2.16 allows remote attackers to read device information without authentication. The sc-diagnostic-ui module serves the device information page without checking whether the requester is authorized. Network reachability to the web interface is sufficient; the published impact is limited to disclosure of sensitive device information.

The record

CVE
CVE-2021-44794
Published
Jan 27, 2022
Updated
May 18, 2026
Vendor
Kron Technologies
Product
Single Connect
Classifications
CWE-862
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 27, 2022CVE publishedPublication date reported by the CVE source.
  2. May 18, 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=unspecified <2.16

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Kron Technologies · Single Connectversion=unspecified <2.16

Published CVSS scores

5.0NIST NVDAV:N/AC:L/Au:N/C:P/I:N/A:N
5.3Computer Emergency Response Team of the Republic of TurkeyCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/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-862Missing Authorization

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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