Vulnerability Description
When a user has already allowed a website to access microphone and camera, disabling camera sharing would not fully prevent the website from re-enabling it without an additional prompt. This was only possible if the website kept recording with the microphone until re-enabling the camera. This vulnerability affects Firefox < 89.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Mozilla | Firefox | >= 78.11.0, < 89.0 |
Related Weaknesses (CWE)
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=1395819Issue TrackingPermissions RequiredVendor Advisory
- https://security.gentoo.org/glsa/202107-09Third Party Advisory
- https://www.mozilla.org/security/advisories/mfsa2021-23/Release NotesVendor Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1395819Issue TrackingPermissions RequiredVendor Advisory
- https://security.gentoo.org/glsa/202107-09Third Party Advisory
- https://www.mozilla.org/security/advisories/mfsa2021-23/Release NotesVendor Advisory
FAQ
What is CVE-2021-29959?
CVE-2021-29959 is a vulnerability with a CVSS score of 4.3 (MEDIUM). When a user has already allowed a website to access microphone and camera, disabling camera sharing would not fully prevent the website from re-enabling it without an additional prompt. This was only ...
How severe is CVE-2021-29959?
CVE-2021-29959 has been rated MEDIUM with a CVSS base score of 4.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-29959?
Check the references section above for vendor advisories and patch information. Affected products include: Mozilla Firefox.