CVE-2021-29963
MEDIUMCVSS 4.3/10EPSS 0.33%
Last modified
CVE-2021-29963 is a medium-severity vulnerability rated 4.3/10 on the CVSS scale. Address bar search suggestions in private browsing mode were re-using session data from normal mode. *This bug only affects Firefox for Android. EPSS estimates a 0.33% chance of exploitation in the next 30 days.
Description
Address bar search suggestions in private browsing mode were re-using session data from normal mode. *This bug only affects Firefox for Android. Other operating systems are unaffected.*. This vulnerability affects Firefox < 89.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Mozilla | Firefox | < 89.0 |
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=1705068Permissions Required, Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2021-23/Release Notes, Vendor Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1705068Permissions Required, Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2021-23/Release Notes, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-29963?
Address bar search suggestions in private browsing mode were re-using session data from normal mode. *This bug only affects Firefox for Android. Other operating systems are unaffected.*. This vulnerability affects Firefox < 89.
How severe is CVE-2021-29963?
CVE-2021-29963 has a CVSS score of 4.3/10 (MEDIUM severity). The EPSS model estimates a 0.33% probability of exploitation in the next 30 days.
How do I fix CVE-2021-29963?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
Are you affected by CVE-2021-29963?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST