CVE-2021-36199Network attack vector

Unauthenticated service interruption

Published Jan 14, 2022 · Updated Sep 16, 2024

Denial of service in Johnson Controls VideoEdge 5.4.1 through 5.7.1 allows remote attackers to stop NVR functionality via scanner traffic. Johnson Controls identifies syntactically invalid input handling but does not disclose the affected service, parser, message format, or erroneous operation. No authentication or user interaction is required; the reported consequence is limited to unspecified functionality stopping.

CVSS severity5.3
Medium
EPSS probability1.04%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial of service in Johnson Controls VideoEdge 5.4.1 through 5.7.1 allows remote attackers to stop NVR functionality via scanner traffic. Johnson Controls identifies syntactically invalid input handling but does not disclose the affected service, parser, message format, or erroneous operation. No authentication or user interaction is required; the reported consequence is limited to unspecified functionality stopping.

The record

CVE
CVE-2021-36199
Published
Jan 14, 2022
Updated
Sep 16, 2024
Vendor
Johnson Controls
Product
VideoEdge
Classifications
CWE-228, T1499
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 14, 2022CVE publishedPublication date reported by the CVE source.
  2. Sep 16, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=5.4.1 to 5.7.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Johnson Controls · VideoEdgeversion=5.4.1 to 5.7.1

Published CVSS scores

5.0NIST NVDAV:N/AC:L/Au:N/C:N/I:N/A:P
5.3Johnson ControlsCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

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-228Improper Handling of Syntactically Invalid Structure
T1499Endpoint Denial of Service

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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