CVE-2021-44596Public exploitNetwork attack vector

Unauthenticated code execution via unchecked UDP commands

Published Apr 29, 2022 · Updated Jul 9, 2026

Remote code execution in Wondershare Dr.Fone 12.0.7 and earlier allows remote attackers to run arbitrary code through a UDP service. InstallAssistService.exe accepts a UDP payload naming PowerShell and its arguments, then launches the supplied command without authentication or validation. Network reachability to the SYSTEM-level service is sufficient for complete host control without user interaction.

CVSS severity9.8
Critical
EPSS probability22.93%
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 Wondershare Dr.Fone 12.0.7 and earlier allows remote attackers to run arbitrary code through a UDP service. InstallAssistService.exe accepts a UDP payload naming PowerShell and its arguments, then launches the supplied command without authentication or validation. Network reachability to the SYSTEM-level service is sufficient for complete host control without user interaction.

The record

CVE
CVE-2021-44596
Published
Apr 29, 2022
Updated
Jul 9, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
T1210
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 29, 2022CVE publishedPublication date reported by the CVE source.
  2. Jul 9, 2026Record 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

10.0NVDAV:N/AC:L/Au:N/C:C/I:C/A:C
9.8NVDCVSS: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 exploitPublished

Weakness, pattern, technique

T1210Exploitation of Remote Services

Public exploit references

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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