CVE-2021-29958

Description

When a download was initiated, the client did not check whether it was in normal or private browsing mode, which led to private mode cookies being shared in normal browsing mode. This vulnerability affects Firefox for iOS < 34.

Category

4.3
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.19%
Vendor Advisory mozilla.org Vendor Advisory mozilla.org
Affected: Mozilla Firefox for iOS
Published at:
Updated at:

References

Link Tags
https://www.mozilla.org/security/advisories/mfsa2021-25/ release notes vendor advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1670127 permissions required vendor advisory

Frequently Asked Questions

What is the severity of CVE-2021-29958?
CVE-2021-29958 has been scored as a medium severity vulnerability.
How to fix CVE-2021-29958?
To fix CVE-2021-29958, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-29958 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-29958 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-29958?
CVE-2021-29958 affects Mozilla Firefox for iOS.
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