CVE-2022-34478mediumobserved exploitationCWE-601

CVE-2022-34478: medium-severity vulnerability in Mozilla Thunderbird

Published · Updated

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35Vexday Risk Score

Prioritize patching. It exploitation observed by VulnCheck.

ssvc Attendcvss 6.5epss 0.8%
from disclosure to weapon
Published on NVDDec 22
VulnCheckJun 15
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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N