CVE-2020-9751Network attack vector

Unauthenticated code execution via unverified upgrade file

Published Mar 3, 2020 · Updated Aug 4, 2024

Code execution in Naver Cloud Explorer 2.2.2.11 and earlier allows remote attackers to run a downloaded file during an upgrade. The upgrade mechanism accepts a file from an attacker-controlled server, downloads it without verifying its integrity, and executes it. No authentication or user interaction is required; successful exploitation runs attacker-supplied code in the updater's context, although NAVER has not identified the responsible function or update protocol.

CVSS severity9.1
Critical
EPSS probability0.48%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Code execution in Naver Cloud Explorer 2.2.2.11 and earlier allows remote attackers to run a downloaded file during an upgrade. The upgrade mechanism accepts a file from an attacker-controlled server, downloads it without verifying its integrity, and executes it. No authentication or user interaction is required; successful exploitation runs attacker-supplied code in the updater's context, although NAVER has not identified the responsible function or update protocol.

The record

CVE
CVE-2020-9751
Published
Mar 3, 2020
Updated
Aug 4, 2024
Vendor
NAVER Corporation
Product
Naver Cloud Explorer
Classifications
CWE-494, T1203
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 3, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 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 <=2.2.2.11

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

NAVER Corporation · Naver Cloud Explorerversion=unspecified <=2.2.2.11

Published CVSS scores

6.4NIST NVDAV:N/AC:L/Au:N/C:P/I:P/A:N
9.1NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-494Download of Code Without Integrity Check
T1203Exploitation for Client Execution

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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