CVE-2021-37911

Unauthenticated command execution via unchecked Web Service privileges

Published Aug 30, 2021 · Updated Sep 16, 2024

Improper privilege management in BenQ EH600 01.00.30.00 and earlier allows remote attackers to execute commands over the local network. The projector's Web Service fails to enforce user privileges on directory-access and file-upload operations, allowing arbitrary directory access and malicious file installation. An attacker must first reach the projector's local subnet; no authentication or user interaction is required, and exploitation can disclose files or execute attacker-supplied code.

CVSS severity8.8
High
EPSS probability0.58%
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 BenQ EH600 01.00.30.00 and earlier allows remote attackers to execute commands over the local network. The projector's Web Service fails to enforce user privileges on directory-access and file-upload operations, allowing arbitrary directory access and malicious file installation. An attacker must first reach the projector's local subnet; no authentication or user interaction is required, and exploitation can disclose files or execute attacker-supplied code.

The record

CVE
CVE-2021-37911
Published
Aug 30, 2021
Updated
Sep 16, 2024
Vendor
BenQ Corporation
Product
EH600
Classifications
CWE-269, T1210
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 30, 2021CVE 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

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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 <=v01.00.30.00

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

BenQ Corporation · EH600version=unspecified <=v01.00.30.00

Published CVSS scores

8.8TWCERT/CCCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
8.3NIST NVDAV:A/AC:L/Au:N/C:C/I:C/A:C

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)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-269Improper Privilege Management
T1210Exploitation of Remote Services

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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