firefox mobile vulnerabilities and fixes
Recent CVEs affecting firefox mobile, with upgrade or downgrade steps. 6 tracked.
firefox mobile has 6 tracked vulnerabilities, 0 critical. A fixed release or vendor patch exists for 6. Most recent: 2026-08-18. Highest priority: CVE-2023-29536 (score 44/100).
- CVE-2023-29536 HIGH 8.8 UPGRADE UPGRADE An attacker could cause the memory manager to incorrectly free a pointer that addresses attacker-controlled me
- CVE-2023-29539 HIGH 8.8 UPGRADE UPGRADE When handling the filename directive in the Content-Disposition header, the filename would be truncated if the
- CVE-2023-25747 HIGH 7.5 UPGRADE A potential use-after-free in libaudio was fixed by disabling the AAudio backend when running on Android API b
- CVE-2026-74951 MEDIUM 6.5 UPGRADE Clickjacking issue in Firefox for Android
- CVE-2026-74980 MEDIUM 6.5 UPGRADE Clickjacking issue in the Downloads component in Firefox for Android
- CVE-2026-74975 MEDIUM 5.4 UPGRADE Spoofing issue in the Downloads component in Firefox for Android
FAQ
How do I fix firefox mobile 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 firefox mobile being exploited right now?
None of the tracked firefox mobile CVEs are on the CISA Known Exploited Vulnerabilities list at the moment. This is checked every 20 minutes.
Which firefox mobile CVE should I patch first?
CVE-2023-29536 currently ranks highest (44/100): An attacker could cause the memory manager to incorrectly free a pointer that addresses attacker-controlled me.