Published: 03/11/2021 Updated: 09/12/2022

CVSS v2 Base Score: 4.3 | Impact Score: 2.9 | Exploitability Score: 8.6

CVSS v3 Base Score: 6.5 | Impact Score: 3.6 | Exploitability Score: 2.8

VMScore: 383

Vector: AV:N/AC:M/Au:N/C:N/I:P/A:N

When delegating navigations to the operating system, Firefox would accept the `mk` scheme which might allow malicious users 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.

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When delegating navigations to the operating system, Firefox before version 911 and Thunderbird before version 7814 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 ...

Mozilla Foundation Security Advisory 2021-41 Security Vulnerabilities fixed in Thunderbird 911 Announced September 7, 2021 Impact low Products Thunderbird Fixed in Thunderbird 911 ...

Mozilla Foundation Security Advisory 2021-38 Security Vulnerabilities fixed in Firefox 92 Announced September 7, 2021 Impact high Products Firefox Fixed in Firefox 92 ...

Mozilla Foundation Security Advisory 2021-40 Security Vulnerabilities fixed in Firefox ESR 911 Announced September 7, 2021 Impact low Products Firefox ESR Fixed in Firefox ESR 911 ...

Mozilla Foundation Security Advisory 2021-39 Security Vulnerabilities fixed in Firefox ESR 7814 Announced September 7, 2021 Impact moderate Products Firefox ESR Fixed in Firefox ESR 7814 ...

Mozilla Foundation Security Advisory 2021-42 Security Vulnerabilities fixed in Thunderbird 7814 Announced September 7, 2021 Impact moderate Products Thunderbird Fixed in Thunderbird 7814 ...

NVD-CWE-noinfo https://www.mozilla.org/security/advisories/mfsa2021-41/https://www.mozilla.org/security/advisories/mfsa2021-40/https://www.mozilla.org/security/advisories/mfsa2021-42/https://www.mozilla.org/security/advisories/mfsa2021-38/https://www.mozilla.org/security/advisories/mfsa2021-39/https://bugzilla.mozilla.org/show_bug.cgi?id=1721107 https://security.gentoo.org/glsa/202208-14 https://nvd.nist.gov https://security.archlinux.org/CVE-2021-38492 https://www.mozilla.org/en-US/security/advisories/mfsa2021-41/

CVE-2021-38492

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