PatchTheCVEwcn3988 firmware vulnerabilities and fixes
Recent CVEs affecting wcn3988 firmware, with upgrade or downgrade steps. 2 tracked.
Also searched as: wcn3988firmware.
wcn3988 firmware has 2 tracked vulnerabilities, 0 critical. A fixed release or vendor patch exists for 0. Most recent: 2026-04-06. Highest priority: CVE-2026-21375 (score 27/100).
- CVE-2026-21375 HIGH 7.8 MITIGATE MITIGATE Memory Corruption when accessing an output buffer without validating its size during IOCTL processing.
- CVE-2026-21378 HIGH 7.8 MITIGATE MITIGATE Memory Corruption when accessing an output buffer without validating its size during IOCTL processing in a cam
FAQ
How do I fix wcn3988 firmware vulnerabilities?
Open the CVE for your version, check the affected range, then follow the listed action: upgrade to the fixed release, or downgrade or mitigate if no fix exists yet. Commands for each OS are shown on every CVE page.
Is wcn3988 firmware being exploited right now?
None of the tracked wcn3988 firmware CVEs are on the CISA Known Exploited Vulnerabilities list at the moment. This is checked every 20 minutes.
Which wcn3988 firmware CVE should I patch first?
CVE-2026-21375 currently ranks highest (27/100): Memory Corruption when accessing an output buffer without validating its size during IOCTL processing..