CVE-2022-31499Known exploitationPublic exploitNetwork attack vector

Remote command execution via unsanitized ReaderNo

Published Aug 25, 2022 · Updated Aug 3, 2024

OS command injection in Nortek Linear eMerge E3-Series devices before 0.32-08f allows remote attackers to execute arbitrary commands. The card_scan.php endpoint fails to sanitize the ReaderNo parameter before using it in an operating-system command, allowing shell metacharacters to alter execution. No authentication or user interaction is required, and successful exploitation grants control of the access-control appliance.

CVSS severity9.8
Critical
EPSS probability64.59%
Next 30 days · Sep 16, 2026
Known exploitationReported
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

OS command injection in Nortek Linear eMerge E3-Series devices before 0.32-08f allows remote attackers to execute arbitrary commands. The card_scan.php endpoint fails to sanitize the ReaderNo parameter before using it in an operating-system command, allowing shell metacharacters to alter execution. No authentication or user interaction is required, and successful exploitation grants control of the access-control appliance.

The record

CVE
CVE-2022-31499
Published
Aug 25, 2022
Updated
Aug 3, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-78, T1059, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 25, 2022CVE publishedPublication date reported by the CVE source.
  2. May 1, 2023Exploitation reportedMirai botnet exploitation of eMerge E3 devices
  3. 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 privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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.

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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 exploitationReported
Public exploitPublished

Weakness, pattern, technique

CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
T1059Command and Scripting Interpreter
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Reported exploitation

Technologies

Your stack

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Your stack

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