CVE-2021-38492
Gentoo Linux Security Advisory 202208-14
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
1Exploited in Wild
-Decision
Descriptions
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.
Cuando se delegaba la navegación al sistema operativo, Firefox aceptaba el esquema "mk" que podía permitir a atacantes lanzar páginas y ejecutar scripts en Internet Explorer en modo no privilegiado. *Este bug sólo afecta a Firefox para Windows. Los demás sistemas operativos no están afectados*. Esta vulnerabilidad afecta a Firefox versiones anteriores a 92, Thunderbird versiones anteriores a 91.1, Thunderbird versiones anteriores a 78.14, Firefox ESR versiones anteriores a 78.14 y Firefox ESR versiones anteriores a 91.1
Multiple vulnerabilities have been found in Mozilla Thunderbird, the worst of which could result in the arbitrary execution of code. Versions less than 91.12.0 are affected.
CVSS Scores
SSVC
- Decision:-
Timeline
- 2021-08-10 CVE Reserved
- 2021-11-03 CVE Published
- 2024-08-04 CVE Updated
- 2024-08-04 First Exploit
- 2025-03-30 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
CWE
CAPEC
References (7)
| URL | Tag | Source |
|---|
| URL | Date | SRC |
|---|---|---|
| https://bugzilla.mozilla.org/show_bug.cgi?id=1721107 | 2024-08-04 |
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://security.gentoo.org/glsa/202208-14 | 2022-12-09 | |
| https://www.mozilla.org/security/advisories/mfsa2021-38 | 2022-12-09 | |
| https://www.mozilla.org/security/advisories/mfsa2021-39 | 2022-12-09 | |
| https://www.mozilla.org/security/advisories/mfsa2021-40 | 2022-12-09 | |
| https://www.mozilla.org/security/advisories/mfsa2021-41 | 2022-12-09 | |
| https://www.mozilla.org/security/advisories/mfsa2021-42 | 2022-12-09 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Mozilla Search vendor "Mozilla" | Firefox Search vendor "Mozilla" for product "Firefox" | < 92.0 Search vendor "Mozilla" for product "Firefox" and version " < 92.0" | - |
Affected
| in | Microsoft Search vendor "Microsoft" | Windows Search vendor "Microsoft" for product "Windows" | - | - |
Safe
|
| Mozilla Search vendor "Mozilla" | Firefox Esr Search vendor "Mozilla" for product "Firefox Esr" | < 78.14 Search vendor "Mozilla" for product "Firefox Esr" and version " < 78.14" | - |
Affected
| in | Microsoft Search vendor "Microsoft" | Windows Search vendor "Microsoft" for product "Windows" | - | - |
Safe
|
| Mozilla Search vendor "Mozilla" | Firefox Esr Search vendor "Mozilla" for product "Firefox Esr" | >= 91.0 < 91.1 Search vendor "Mozilla" for product "Firefox Esr" and version " >= 91.0 < 91.1" | - |
Affected
| in | Microsoft Search vendor "Microsoft" | Windows Search vendor "Microsoft" for product "Windows" | - | - |
Safe
|
| Mozilla Search vendor "Mozilla" | Thunderbird Search vendor "Mozilla" for product "Thunderbird" | < 78.14 Search vendor "Mozilla" for product "Thunderbird" and version " < 78.14" | - |
Affected
| in | Microsoft Search vendor "Microsoft" | Windows Search vendor "Microsoft" for product "Windows" | - | - |
Safe
|
| Mozilla Search vendor "Mozilla" | Thunderbird Search vendor "Mozilla" for product "Thunderbird" | >= 91.0 < 91.1 Search vendor "Mozilla" for product "Thunderbird" and version " >= 91.0 < 91.1" | - |
Affected
| in | Microsoft Search vendor "Microsoft" | Windows Search vendor "Microsoft" for product "Windows" | - | - |
Safe
|