CVE-2026-25268: Memory Corruption when processing invalid HT40 channel layouts during dynamic channel switching operations.
31
Routine
HIGH 8.8MITIGATEMITIGATEMITIGATE
CVE-2026-25268 is a high-severity flaw (CVSS 8.8) affecting wsa8835 firmware, 5g fixed wireless access platform firmware, ar8035 firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
Memory Corruption when processing invalid HT40 channel layouts during dynamic channel switching operations.
Why this priority
High severity
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 ar8035 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 cq7790 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 cq8725s 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 qca4024 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-2026-25268?
wsa8835 firmware: mitigate or apply the listed mitigation; 5g fixed wireless access platform firmware: mitigate or apply the listed mitigation; ar8035 firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.
Is CVE-2026-25268 being exploited?
CVE-2026-25268 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-2026-25268 affect?
CVE-2026-25268 affects wsa8835 firmware, 5g fixed wireless access platform firmware, ar8035 firmware. Severity is high (CVSS 8.8). Memory Corruption when processing invalid HT40 channel layouts during dynamic channel switching operations.
PatchTheCVE