CVE-2024-52777Network attack vector

Unauthenticated code execution via license update handler

Published Nov 29, 2024 · Updated Nov 29, 2024

Remote code execution in DCN DCME-320, DCME-320-L, DCME-520, and DCME-720 firmware allows remote attackers to execute system commands. The affected /function/system/basic/license_update.php handler processes a crafted request, but public sources do not disclose the parameter or unsafe operation that reaches command execution. No authentication or user interaction is required, and successful exploitation grants command execution on the gateway appliance.

CVSS severity9.8
Critical
EPSS probability0.75%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Remote code execution in DCN DCME-320, DCME-320-L, DCME-520, and DCME-720 firmware allows remote attackers to execute system commands. The affected /function/system/basic/license_update.php handler processes a crafted request, but public sources do not disclose the parameter or unsafe operation that reaches command execution. No authentication or user interaction is required, and successful exploitation grants command execution on the gateway appliance.

The record

CVE
CVE-2024-52777
Published
Nov 29, 2024
Updated
Nov 29, 2024
Vendor
Beijing Digital China Cloud Technology Co., Ltd.
Product
DCME-720
Classifications
T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 29, 2024CVE publishedPublication date reported by the CVE source.
  2. Nov 29, 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=0 <=9.1.5.11

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Beijing Digital China Cloud Technology Co., Ltd. · DCME-720version=0 <=9.1.5.11
Beijing Digital China Cloud Technology Co., Ltd. · DCME-520version=0 <=9.25.5.11
Beijing Digital China Cloud Technology Co., Ltd. · DCME-320version=0 <=7.4.12.90
Beijing Digital China Cloud Technology Co., Ltd. · DCME-320-Lversion=0 <=9.3.5.26

Published CVSS scores

9.8CISA-ADPCVSS: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.

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

T1190Exploit Public-Facing Application

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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