Security readout for executives and security teams
Plain-English summary
This flaw affects several SOUND4 audio/broadcast appliances and a Kantar Media WM2 product. A remote attacker who can reach the device may abuse firmware upload handling to write files and run code without logging in. For exposed broadcast infrastructure, this can mean loss of service, unauthorized control, or tampering.
Executive priority
Treat this as an urgent infrastructure risk if affected devices are reachable. The issue enables unauthenticated code execution and has public exploit information. Prioritize discovery, exposure reduction, and vendor-confirmed updates or isolation, especially for broadcast-critical systems.
Technical view
CVE-2022-50796 is an unauthenticated remote code execution issue tied to upload.cgi firmware upload functionality and path traversal. The provided CVSS is 9.8, network exploitable, low complexity, no privileges, no user interaction. Reported impact includes file write as www-data and code execution across listed SOUND4 and Kantar versions.
Likely exposure
Highest risk applies to internet-facing or untrusted-network-accessible affected SOUND4/Kantar devices. Internal-only devices still matter if reachable from compromised workstations or third-party networks. Exposure depends on running the listed versions and whether upload.cgi is reachable.
Exploitation context
Public exploit details are referenced by Packet Storm, and third-party advisories exist. The source bundle does not identify CISA KEV listing or confirmed active exploitation. Treat as highly exploitable due to unauthenticated network RCE characteristics, but do not assume active exploitation without additional evidence.
Researcher notes
Affected entries include SOUND4 Impact/Pulse/First, Impact/Pulse Eco, BigVoice4, BigVoice2, Stream, and Kantar Media WM2 versions listed in the CVE bundle. No official patch version is named in the provided sources. Avoid relying on exploit verification in production; use safe inventory and log-based validation.
Mitigation direction
- Identify all SOUND4 and Kantar Media WM2 devices and firmware versions.
- Restrict management interfaces to trusted administrative networks only.
- Block internet access to affected device web interfaces where possible.
- Check SOUND4 or Kantar guidance for fixed firmware or official mitigations.
- Monitor devices for unexpected file changes, new web content, or abnormal processes.
- Prioritize replacement or isolation if no vendor-supported fix is available.
Validation and detection
- Confirm whether listed affected products and versions exist in the environment.
- Verify whether upload.cgi or device web management is reachable from untrusted networks.
- Review web server logs for suspicious upload or traversal-related requests.
- Check device filesystem integrity using vendor-supported administrative methods.
- Validate that network controls limit access to authorized management hosts.
- Document remediation status and remaining unsupported devices.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-22: File access and web shell behavior lookup
File traversal and upload weaknesses can lead teams to review file, web shell, execution, and collection telemetry. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupExecution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupFile access behavior lookup
The CVE wording references file access or upload behavior, so file telemetry and web shell review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2022-50796 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Critical
- CVSS
- 9.8 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H3.95.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
9.8CriticalVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- Zero Science Lab Disclosure (ZSL-2022-5741)CVE reference · third-party-advisory
- Packet Storm Security Exploit DetailsCVE reference · exploit
- IBM X-Force Vulnerability Exchange EntryCVE reference · vdb-entry
- SOUND4 Product HomepageCVE reference · product
- VulnCheck Advisory: SOUND4 IMPACT/FIRST/PULSE/Eco <=2.x Unauthenticated Remote Code Execution via upload.cgiCVE reference · third-party-advisory
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.