CVE-2022-50909Public exploitNetwork attack vector

Authenticated root command execution via file rename

Published Jan 13, 2026 · Updated Jan 13, 2026

OS command injection in Algo 8028 IP Doorphone firmware 3.3.3 allows remote authenticated users to execute commands as root. The fm-data.lua file-manager rename action interprets shell syntax embedded in the source POST parameter instead of neutralizing it. A valid web-interface password is required; injected commands run with root privileges and can fully control the appliance.

CVSS severity8.6
High
EPSS probability2.44%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

OS command injection in Algo 8028 IP Doorphone firmware 3.3.3 allows remote authenticated users to execute commands as root. The fm-data.lua file-manager rename action interprets shell syntax embedded in the source POST parameter instead of neutralizing it. A valid web-interface password is required; injected commands run with root privileges and can fully control the appliance.

The record

CVE
CVE-2022-50909
Published
Jan 13, 2026
Updated
Jan 13, 2026
Vendor
Algo Communication Products Ltd.
Product
8028 IP Doorphone
Classifications
CWE-78, CAPEC-88, T1059.004
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 13, 2026CVE publishedPublication date reported by the CVE source.
  2. Jan 13, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=3.3.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Algo Communication Products Ltd. · 8028 IP Doorphoneversion=3.3.3

Published CVSS scores

8.6VulnCheckCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
8.8VulnCheckCVSS:3.1/AV:N/AC:L/PR:L/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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
CAPEC-88OS Command Injection
T1059.004Command and Scripting Interpreter: Unix Shell

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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