CVE-2021-22732Network attack vector

Code execution via unauthorized code upload

Published May 26, 2021 · Updated Aug 3, 2024

Improper privilege management in Schneider Electric homeLYnk (Wiser For KNX) and spaceLYnk V2.60 and prior allows attackers to execute code via the web server. The web server accepts unauthorized code loading without enforcing the required privilege boundary, enabling code to run in the server context. Exploitation requires the attacker to reach the device web interface; the published record does not specify authentication or interaction requirements, so the resulting execution scope is not further bounded.

CVSS severity7.8
High
EPSS probability0.26%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper privilege management in Schneider Electric homeLYnk (Wiser For KNX) and spaceLYnk V2.60 and prior allows attackers to execute code via the web server. The web server accepts unauthorized code loading without enforcing the required privilege boundary, enabling code to run in the server context. Exploitation requires the attacker to reach the device web interface; the published record does not specify authentication or interaction requirements, so the resulting execution scope is not further bounded.

The record

CVE
CVE-2021-22732
Published
May 26, 2021
Updated
Aug 3, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-269, T1068
Attack vector
network
Privileges
Unavailable

Timeline

How it unfolded

  1. May 26, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 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 privilegesUnavailable in this record.

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.8NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
4.6NVDAV:L/AC:L/Au:N/C:P/I:P/A:P

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
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-269Improper Privilege Management
T1068Exploitation for Privilege Escalation

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

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Your stack

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