CVE-2022-50789Public exploit

Command execution via staged .dns.pid file

Published Dec 30, 2025 · Updated Dec 30, 2025

OS command injection in SOUND4 BIG VOICE 2 1.30, BIG VOICE 4 1.2, and WM2 1.11 allows local users to execute arbitrary commands. The dns.php handler executes commands from a file placed in /tmp with a .dns.pid suffix when it receives a single HTTP POST, then deletes that file. Exploitation requires a local authenticated user to stage the file; an unauthenticated remote attacker can subsequently trigger system access or a service crash.

CVSS severity8.5
High
EPSS probability4.25%
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 SOUND4 BIG VOICE 2 1.30, BIG VOICE 4 1.2, and WM2 1.11 allows local users to execute arbitrary commands. The dns.php handler executes commands from a file placed in /tmp with a .dns.pid suffix when it receives a single HTTP POST, then deletes that file. Exploitation requires a local authenticated user to stage the file; an unauthenticated remote attacker can subsequently trigger system access or a service crash.

The record

CVE
CVE-2022-50789
Published
Dec 30, 2025
Updated
Dec 30, 2025
Vendor
Kantar Media
Product
BIG VOICE 2
Classifications
CWE-78, T1059.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Dec 30, 2025CVE publishedPublication date reported by the CVE source.
  2. Dec 30, 2025Record 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=1.30

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Kantar Media · BIG VOICE 2version=1.30
Kantar Media · WM2version=1.11
Kantar Media · BIG VOICE 4version=1.2

Published CVSS scores

8.5VulnCheckCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
7.8VulnCheckCVSS:3.1/AV:L/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.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS 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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