CVE-2022-34478

Description

The <code>ms-msdt</code>, <code>search</code>, and <code>search-ms</code> protocols deliver content to Microsoft applications, bypassing the browser, when a user accepts a prompt. These applications have had known vulnerabilities, exploited in the wild (although we know of none exploited through Thunderbird), so in this release Thunderbird has blocked these protocols from prompting the user to open them.<br>*This bug only affects Thunderbird on Windows. Other operating systems are unaffected.*. This vulnerability affects Firefox < 102, Firefox ESR < 91.11, Thunderbird < 102, and Thunderbird < 91.11.

Category

6.5
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.03%
Vendor Advisory mozilla.org Vendor Advisory mozilla.org Vendor Advisory mozilla.org Vendor Advisory mozilla.org
Affected: Mozilla Firefox
Affected: Mozilla Firefox ESR
Affected: Mozilla Thunderbird
Published at:
Updated at:

References

Link Tags
https://www.mozilla.org/security/advisories/mfsa2022-24/ vendor advisory
https://www.mozilla.org/security/advisories/mfsa2022-26/ vendor advisory
https://www.mozilla.org/security/advisories/mfsa2022-25/ vendor advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1773717 issue tracking permissions required vendor advisory

Frequently Asked Questions

What is the severity of CVE-2022-34478?
CVE-2022-34478 has been scored as a medium severity vulnerability.
How to fix CVE-2022-34478?
To fix CVE-2022-34478, 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-2022-34478 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2022-34478 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-2022-34478?
CVE-2022-34478 affects Mozilla Firefox, Mozilla Firefox ESR, Mozilla Thunderbird.
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