Mozilla Firefox ESR and 3 others: When delegating navigations to the operating system, Firefox would accept the `mk` scheme which might…
CVE-2021-38492 is fixed in 2 products on 1 platform, first by Mozilla Thunderbird (en-US) 91.1.2, released September 24, 2021. It is not reported as exploited. Patch Radar priority: Routine.
When delegating navigations to the operating system, Firefox would accept the `mk` scheme which might allow attackers to launch pages and execute scripts in Internet Explorer in unprivileged mode. *This bug only affects Firefox for Windows. Other operating systems are unaffected.*. This vulnerability affects Firefox < 92, Thunderbird < 91.1, Thunderbird < 78.14, Firefox ESR < 78.14, and Firefox ESR < 91.1.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Windows apps | |||
| Mozilla Firefox ESR (en-US) | 102.0 | Mozilla Firefox ESR (en-US) 102.0 | Jun 23, 2022 |
| Mozilla Thunderbird (en-US) | 91.1.2 | Mozilla Thunderbird (en-US) 91.1.2 | Sep 24, 2021 |
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