Vulnerability Description
Mozilla developers and community members reported memory safety bugs present in Firefox 87. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 88.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Mozilla | Firefox | < 88.0 |
Related Weaknesses (CWE)
References
- https://bugzilla.mozilla.org/buglist.cgi?bug_id=1651449%2C1674142%2C1693476%2C16Broken LinkVendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2021-16/Release NotesVendor Advisory
- https://bugzilla.mozilla.org/buglist.cgi?bug_id=1651449%2C1674142%2C1693476%2C16Broken LinkVendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2021-16/Release NotesVendor Advisory
FAQ
What is CVE-2021-29947?
CVE-2021-29947 is a vulnerability with a CVSS score of 8.8 (HIGH). Mozilla developers and community members reported memory safety bugs present in Firefox 87. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these...
How severe is CVE-2021-29947?
CVE-2021-29947 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-29947?
Check the references section above for vendor advisories and patch information. Affected products include: Mozilla Firefox.