CVE-2025-47403: Transient DOS when processing a malformed Fast Transition response frame with an invalid header structure duri
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Routine
MEDIUM 6.5MITIGATEMITIGATEMITIGATE
CVE-2025-47403 is a medium-severity flaw (CVSS 6.5) affecting snapdragon x65 5g modem-rf firmware, snapdragon x72 5g modem-rf firmware, snapdragon x75 5g modem-rf firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
Transient DOS when processing a malformed Fast Transition response frame with an invalid header structure during wireless roaming.
Why this priority
No elevated risk signals yet
No fix is published yet: follow the downgrade or mitigation steps.
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.
qualcomm srv1h firmware MITIGATE
Affected: all versions
Fixed in: no fixed release known
Safe to downgrade to: no unaffected older release
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.
qualcomm srv1m firmware MITIGATE
Affected: all versions
Fixed in: no fixed release known
Safe to downgrade to: no unaffected older release
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.
qualcomm sxr2230p firmware MITIGATE
Affected: all versions
Fixed in: no fixed release known
Safe to downgrade to: no unaffected older release
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-2025-47403?
snapdragon x65 5g modem-rf firmware: mitigate or apply the listed mitigation; snapdragon x72 5g modem-rf firmware: mitigate or apply the listed mitigation; snapdragon x75 5g modem-rf firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.
Is CVE-2025-47403 being exploited?
CVE-2025-47403 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-2025-47403 affect?
CVE-2025-47403 affects snapdragon x65 5g modem-rf firmware, snapdragon x72 5g modem-rf firmware, snapdragon x75 5g modem-rf firmware. Severity is medium (CVSS 6.5). Transient DOS when processing a malformed Fast Transition response frame with an invalid header structure during wireless roaming.
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