CVE-2023-53965: SOUND4 Server Service 4.1.102 contains an unquoted service path vulnerability that allows local non-privileged
38
Routine
HIGH 8.4MITIGATEMITIGATEMITIGATE
CVE-2023-53965 is a high-severity flaw (CVSS 8.4) affecting playout ula8 firmware, stream x8 firmware, stream x4 firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
SOUND4 Server Service 4.1.102 contains an unquoted service path vulnerability that allows local non-privileged users to potentially execute code with elevated system privileges. Attackers can exploit the unquoted binary path by inserting malicious code in the system root path that could execute with LocalSystem privileges during service startup.
Why this priority
High severity
Public exploit reference
No fix is published yet: follow the downgrade or mitigation steps.
Last updated 2026-10-28 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
Published CVE record published
Updated Record last modified
sound4 playout ula8 firmware MITIGATE
Affected: 4.1.102
Fixed in: no fixed release known
Safe to downgrade to: a release before 4.1.102
Check your OS release
cat /etc/os-release; uname -r
Debian / Ubuntu
sudo apt update && sudo apt full-upgrade
RHEL / Amazon Linux / Fedora
sudo dnf upgrade --refresh
Windows
Install the latest cumulative update from Windows Update
If no patch exists yet
OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.
sound4 stream x8 firmware MITIGATE
Affected: 4.1.102
Fixed in: no fixed release known
Safe to downgrade to: a release before 4.1.102
Check your OS release
cat /etc/os-release; uname -r
Debian / Ubuntu
sudo apt update && sudo apt full-upgrade
RHEL / Amazon Linux / Fedora
sudo dnf upgrade --refresh
Windows
Install the latest cumulative update from Windows Update
If no patch exists yet
OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.
sound4 stream x4 firmware MITIGATE
Affected: 4.1.102
Fixed in: no fixed release known
Safe to downgrade to: a release before 4.1.102
Check your OS release
cat /etc/os-release; uname -r
Debian / Ubuntu
sudo apt update && sudo apt full-upgrade
RHEL / Amazon Linux / Fedora
sudo dnf upgrade --refresh
Windows
Install the latest cumulative update from Windows Update
If no patch exists yet
OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.
sound4 stream x2 firmware MITIGATE
Affected: 4.1.102
Fixed in: no fixed release known
Safe to downgrade to: a release before 4.1.102
Check your OS release
cat /etc/os-release; uname -r
Debian / Ubuntu
sudo apt update && sudo apt full-upgrade
RHEL / Amazon Linux / Fedora
sudo dnf upgrade --refresh
Windows
Install the latest cumulative update from Windows Update
If no patch exists yet
OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.
sound4 wm2 firmware MITIGATE
Affected: 4.1.102
Fixed in: no fixed release known
Safe to downgrade to: a release before 4.1.102
Check your OS release
cat /etc/os-release; uname -r
Debian / Ubuntu
sudo apt update && sudo apt full-upgrade
RHEL / Amazon Linux / Fedora
sudo dnf upgrade --refresh
Windows
Install the latest cumulative update from Windows Update
If no patch exists yet
OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.
sound4 ip connect firmware MITIGATE
Affected: 4.1.102
Fixed in: no fixed release known
Safe to downgrade to: a release before 4.1.102
Check your OS release
cat /etc/os-release; uname -r
Debian / Ubuntu
sudo apt update && sudo apt full-upgrade
RHEL / Amazon Linux / Fedora
sudo dnf upgrade --refresh
Windows
Install the latest cumulative update from Windows Update
If no patch exists yet
OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.
Verify at the official sourceNVD · CVE Program · Report a problem with this page Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2023-53965?
playout ula8 firmware: mitigate or apply the listed mitigation; stream x8 firmware: mitigate or apply the listed mitigation; stream x4 firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.
Is CVE-2023-53965 being exploited?
CVE-2023-53965 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2023-53965 affect?
CVE-2023-53965 affects playout ula8 firmware, stream x8 firmware, stream x4 firmware. Severity is high (CVSS 8.4). SOUND4 Server Service 4.1.102 contains an unquoted service path vulnerability that allows local non-privileged users to potentially execute code with elevated system privileges. Attackers can exploit the unquoted binary path by inserting ma
How urgent is CVE-2023-53965?
Priority 38/100. High severity; Public exploit reference
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