CVE-2025-63953: A Cross-Site Request Forgery (CSRF) in the /usapi?method=add-user component of Magewell Pro Convert v1.2.213 a
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Routine
MEDIUM 6.5MITIGATEMITIGATEMITIGATE
CVE-2025-63953 is a medium-severity flaw (CVSS 6.5) affecting ultra encode hdmi firmware, ultra encode sdi firmware, ultra encode hdmi plus firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
A Cross-Site Request Forgery (CSRF) in the /usapi?method=add-user component of Magewell Pro Convert v1.2.213 allows attackers to arbitrarily create accounts via a crafted GET request.
Why this priority
Public exploit reference
No fix is published yet: follow the downgrade or mitigation steps.
Last updated 2026-06-17 · 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
magewell ultra encode hdmi firmware MITIGATE
Affected: 2.3.206
Fixed in: no fixed release known
Safe to downgrade to: a release before 2.3.206
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.
magewell ultra encode sdi firmware MITIGATE
Affected: 2.3.206
Fixed in: no fixed release known
Safe to downgrade to: a release before 2.3.206
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.
magewell ultra encode hdmi plus firmware MITIGATE
Affected: 2.3.206
Fixed in: no fixed release known
Safe to downgrade to: a release before 2.3.206
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.
magewell ultra encode sdi plus firmware MITIGATE
Affected: 2.3.206
Fixed in: no fixed release known
Safe to downgrade to: a release before 2.3.206
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.
magewell ultra encode aio firmware MITIGATE
Affected: 2.3.206
Fixed in: no fixed release known
Safe to downgrade to: a release before 2.3.206
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-2025-63953?
ultra encode hdmi firmware: mitigate or apply the listed mitigation; ultra encode sdi firmware: mitigate or apply the listed mitigation; ultra encode hdmi plus firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.
Is CVE-2025-63953 being exploited?
CVE-2025-63953 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-2025-63953 affect?
CVE-2025-63953 affects ultra encode hdmi firmware, ultra encode sdi firmware, ultra encode hdmi plus firmware. Severity is medium (CVSS 6.5). A Cross-Site Request Forgery (CSRF) in the /usapi?method=add-user component of Magewell Pro Convert v1.2.213 allows attackers to arbitrarily create accounts via a crafted GET request.
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