Vulnerability Description
Firefox for Android suffered from a time-of-check-time-of-use vulnerability that allowed a malicious application to read sensitive data from application directories. Note: This issue is only affected Firefox for Android. Other operating systems are unaffected. This vulnerability affects Firefox < 86.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Mozilla | Firefox | < 86.0 |
Related Weaknesses (CWE)
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=1684761Issue TrackingPermissions RequiredVendor Advisory
- https://security.gentoo.org/glsa/202104-10Third Party Advisory
- https://www.mozilla.org/security/advisories/mfsa2021-07/Release NotesVendor Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1684761Issue TrackingPermissions RequiredVendor Advisory
- https://security.gentoo.org/glsa/202104-10Third Party Advisory
- https://www.mozilla.org/security/advisories/mfsa2021-07/Release NotesVendor Advisory
FAQ
What is CVE-2021-23977?
CVE-2021-23977 is a vulnerability with a CVSS score of 5.3 (MEDIUM). Firefox for Android suffered from a time-of-check-time-of-use vulnerability that allowed a malicious application to read sensitive data from application directories. Note: This issue is only affected ...
How severe is CVE-2021-23977?
CVE-2021-23977 has been rated MEDIUM with a CVSS base score of 5.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-23977?
Check the references section above for vendor advisories and patch information. Affected products include: Mozilla Firefox.